In the year 2285, Admiral James T. Kirk oversees a simulator session of Captain Spock's trainees. In the simulation, Lieutenant Saavik commands the starship USS Enterprise on a rescue mission to save the crew of a damaged ship. When the Enterprise enters the Klingon Neutral Zone to reach the ship it is attacked by Klingon cruisers and critically damaged. The simulation is named the "Kobayashi Maru"—a no-win scenario designed to test the character of Starfleet officers. Later, Dr. McCoy joins Kirk on his birthday; seeing Kirk in low spirits, the doctor advises Kirk to get a new command and not grow old behind a desk.
The film follows the cast of a once-popular television space-drama series called Galaxy Quest. The fictional series starred Jason Nesmith (Allen) as the commander of a spaceship called the NSEA Protector, Alexander Dane (Rickman) as the ship's alien science officer, Fred Kwan (Shalhoub) as the chief engineer, Gwen DeMarco (Weaver) as the computer officer and Tommy Webber (Mitchell) as a precocious child pilot. Guy Fleegman (Rockwell) played an unnamed security officer, who was quickly killed off in his only appearance on the show.
The Federation Starship Enterprise returns to Earth following a battle with the superhuman Khan Noonien Singh, who tried to destroy the Enterprise by detonating an experimental terraforming device known as Genesis. The casualties of the fight include Admiral James T. Kirk's Vulcan friend, Spock, whose casket was launched into space and eventually landed on the planet created by the Genesis Device. On arriving at Earth Spacedock, Doctor Leonard McCoy begins to act strangely and is detained. Starfleet Admiral Morrow visits the Enterprise and informs the crew the ship is to be decommissioned; the crew is ordered not to speak about Genesis due to political fallout over the device.
The movie begins at a place which appears to be Nevada's legendary Area 51. A visiting general is led down into an underground complex where he is shown a captured alien. The alien resembles a chubby Vulcan in a cowboy costume, and greets the general with a "What are you looking at so stupidly? (Sounds better in German)".
In an African desert millions of years ago, a tribe of man-apes is driven from their water hole by a rival tribe. They wake to find a featureless black monolith has appeared before them. One man-ape realizes how to use a bone as a tool and weapon; the tribe kills the leader of their rivals and reclaims the water hole.
The crew of the newly commissioned USS Enterprise (NCC-1701-A) are enjoying shore leave after the starship's shakedown cruise goes poorly. At Yosemite National Park, Captain James T. Kirk is camping with Spock and Dr. Leonard McCoy. Their leave is interrupted when the Enterprise is ordered by Starfleet Command to rescue human, Klingon, and Romulan hostages on the planet Nimbus III. Learning of the Enterprise 's mission, the Klingon Captain Klaa decides to pursue Kirk for personal glory.
During the Clone Wars, Jedi Knights Anakin Skywalker and Obi-Wan Kenobi lead a small Republic clone army against the Separatist droid army on the planet Christophsis. Awaiting reinforcements, the two Jedi greet a shuttle carrying the young Jedi Ahsoka Tano, who insists that she has been assigned by Jedi Master Yoda to serve as Anakin's Padawan. Anakin begrudgingly accepts Ahsoka's apprenticeship, and the two succeed in deactivating the Separatists' energy field while Obi-Wan stalls the droid army commander, allowing a Republic victory.
During a session of the Romulan Imperial Senate, the military offers the plans to join forces with the Reman military and invade the Federation, but the Praetor refuses. One senator excuses herself for a meeting, leaving behind a device that releases a cascade of green radiation, killing the entire remaining Senate. Meanwhile, the crew of the USS Enterprise-E prepares to bid farewell to longtime first officer Commander William Riker and Counselor Deanna Troi, who are being married on Betazed. En route, they discover a positronic energy reading on a planet in the Kolaran system near the Romulan Neutral Zone. Captain Jean-Luc Picard, Lieutenant Commander Worf, and Lieutenant Commander Data land on Kolarus III and discover the remnants of an android resembling Data. When the android is reassembled it reveals its name is B-4, and the crew deduce it to be a less-advanced, earlier version of Data.
The Power Rangers: Rocky DeSantos, Adam Park, Billy Cranston, Aisha Campbell, Kimberly Hart, and Tommy Oliver, participate with Bulk and Skull in a charity sky dive for the Angel Grove observatory, in anticipation of Ryan's Comet which will pass by in two days. Having waited too long, Bulk and Skull accidentally land in a construction site. They avoid getting into trouble before a giant egg is unearthed from a chamber underground. The evil energy alerts Zordon, an interdimensional wizard and the Rangers' mentor, who warns them of Ivan Ooze: a morphological being bent on the conquest of Earth. Zordon sends the Rangers to return the egg to its chamber, unaware that Lord Zedd and Rita Repulsa have already freed Ivan Ooze and ordered him to destroy Zordon. Ivan leaves the Rangers to face his Oozelings while he lays siege to their Command Center and incapacitates Zordon. Meanwhile, the Rangers morph and dispatch the Oozelings before suddenly losing their powers. Making their way to the Command Center, they find it destroyed and Zordon outside of his time warp, now dying from rapid aging.
Brothers Walter (Josh Hutcherson) and Danny (Jonah Bobo) can never seem to get along with each other, or with their older teen-aged sister, Lisa (Kristen Stewart). While staying at their divorced father's home while he is away at work and Lisa is asleep, the boys discover an old clockwork-driven space-themed board game called "Zathura" in the basement. The two begin to play the game, the goal to be the first to reach the final space named Zathura. During each turn, the game provides a card with instructions, but the two quickly realize the cards affect reality, starting with a meteor shower. They soon discover the house is floating on a small rock in outer space. Meanwhile, Lisa looks out the window, and believing it is merely dark, goes to shower for her date. When the boys try to warn Lisa about what has happened, they find she is frozen in cryonic sleep as a result of one of the cards. The brothers realize that the only way to end the game and hopefully return to Earth is to reach the end space of Zathura.
In the year 2046, a research facility on Mars is suddenly attacked by an unknown assailant. Following a distress call sent by Dr. Todd Carmack, a group of marines, led by Asher "Sarge" Mahonin, is sent on a search-and-rescue mission. One of the Marines, John "Reaper" Grimm, accompanies his sister, Dr. Samantha Grimm, to one of the labs within the devastated sector to retrieve data; here he learns that the dig site where their parents were accidentally killed was re-opened and bones of an ancient group of genetically enhanced race were discovered.
In the distant future, the civilian transport ship Hunter-Gratzner passes near a desert planet while on autopilot with its crew and passengers in cryostasis chambers. The passengers mostly consist of nomadic settlers who are relocating to other planets, a Muslim priest who goes by the title "Imam", with his followers traveling to New Mecca, a young boy named Jack, a pair of Bushwhackers named Shazza and Zeke, a merchant named Paris, and a law enforcement officer, William J. Johns, who is transporting a notorious criminal, Richard B. Riddick, who is chained in a special chamber and is the only one awake while in cryostasis. Riddick has illegally surgically-modified eyes, called Shiners, that give him extra-sensitive vision that allows him to see in the dark.
In 2199, after five years of attacks by an alien race known as Gamilas, the Earth Defense Force launches a counter-offensive near Mars. The fleet's weapons are no match for the Gamilas, who easily wipe out much of the force. During the battle, EDF captain Mamoru Kodai volunteers to use his damaged ship, the destroyer Yukikaze, as a shield to cover Captain Jyuzo Okita's ship, allowing his escape. Mamoru's ship is destroyed.
After the mysterious failure of the Discovery One mission to Jupiter in 2001, which resulted in the deaths of four astronauts and the disappearance of David Bowman, the fiasco was blamed on Dr. Heywood Floyd, who resigned his position as head of the National Council for Astronautics. While an international dispute causes tensions between the United States and the Soviet Union, both nations prepare space missions to determine what happened to the Discovery. Although the Soviet ship, the Leonov, will be ready before the American spacecraft Discovery Two, the Soviets need American astronauts to help board the Discovery and investigate the malfunction of the ship's sentient computer, HAL 9000, which caused the disaster. The US government agrees to a joint mission when it is determined that Discovery will crash into Jupiter's moon Io before Discovery Two is ready. Floyd, along with Discovery designer Walter Curnow and HAL 9000's creator Dr. Chandra, joins the Soviet mission.
Nine-year-old Milo (Seth Green, voice-over by Seth Dusky) is just beginning summer vacation, and his father (Tom Everett Scott) is leaving for a business trip. While Milo is wanting his summer to be a fun one, his mother (Joan Cusack) assigns him chores and tasks like taking out the trash. At dinnertime, Milo is given broccoli. His mother has a "no broccoli, no TV" rule which Milo cleverly evades. When Milo feeds his broccoli to his cat, his mom grounds him and sends him to bed early. After a heated argument with his mother, Milo wishes that he never had a mom. Later that night, his wish comes true when his mother is abducted by Martians who plan to steal her "momness" to rear their own young.