Lancelot is sent through time by Merlin to protect young Arthur before he becomes King of Camelot, but by accident, they both end up in present day world along with the villains. Only technology can help them now.
Eighties teenager Marty McFly is accidentally sent back in time to 1955, inadvertently disrupting his parents' first meeting and attracting his mother's romantic interest.
It's been 10 years since John Connor saved Earth from Judgment Day, and he's now living under the radar, steering clear of using anything Skynet can trace.
The Borg, a relentless race of cyborgs, are on a direct course for Earth. Violating orders to stay away from the battle, Captain Picard and the crew of the newly-commissioned USS Enterprise E pursue the Borg back in time to prevent the invaders from changing Federation history and assimilating the galaxy.
When a huge alien probe enters the galaxy and begins to vaporize Earth's oceans, Kirk and his crew must travel back in time in order to bring back whales and save the planet.
Two ghosts, separated by time, who have roamed the grounds of a historic English mansion, searching for each other are brought together by Ally, a photography student who is experiencing dreams she can't explain and Emmett, the son of a wealthy industrialist.
During routine manoeuvres near Hawaii in 1980, the aircraft-carrier USS Nimitz is caught in a strange vortex-like storm, throwing the ship back in time to 1941—mere hours before the Japanese attack on Pearl Harbor.
The Director reflects upon and seeks to understand the causes and the events that lead to her drug-addicted prostitute daughter being murdered at the age of 26.
A patient dies beneath Dr. Robert Stenzel's hands. His wife, the virologist Simone, realizes too late that the deceased was carrying a contagious virus.