Doctor Who: The Sontaran Experiment

A lone drifter stumbles upon a harrowing discovery - a unique pair of sunglasses that reveals that aliens are systematically gaining control of the Earth by masquerading as humans and lulling the public into submission.

Hundreds of years after humans have settled on Mars, Regulator Rogul and Lord Jens Maul, lead a force of Martians to Earth in order to conquer the planet. Queen Metaphor looks to the gay heroes aboard the spaceship Surprise - Captain Kork, Mr. Spuck, and first engineer Schrotty - for help.

12-year-old David is accidentally knocked out in the forest near his home, but when he awakens eight years have passed. His family is overjoyed to have him back, but is just as perplexed as he is that he hasn't aged. When a NASA scientist discovers a UFO nearby, David gets the chance to unravel the mystery and recover the life he lost.

Three bounty hunters from space fly back to the town of Grovers Bend, hoping to save local residents from a new batch of Critter eggs.

A few years from now, Earth will have the first contact with an alien civilization. These aliens, known as Newcomers, slowly begin to be integrated into human society after years of quarantine.

Peggy Sue faints at a high school reunion. When she wakes up she finds herself in her own past, just before she finished school.

Soo-hyun comes across magical pills that allow him to go back and forth in time. 30 years to the past, young Soo-hyun meets future Soo-hyun and learns that his girlfriend will soon die because of him. In order to save her, the two Soo-hyuns try to change the past together, but a completely new and unexpected past is formed that leads to a new future.

When a hunter sent back to the prehistoric era runs off the path he must not leave, he causes a chain reaction that alters history in disastrous ways.

After the disappearance of a young scientist on a business trip, his son and wife struggle to cope, only to make a bizarre discovery years later - one that may bring him home.

The Doctor, Jamie and Zoe return to Earth and become embroiled in the schemes of Tobias Vaughn. They meet up with an old friend, Colonel (now Brigadier) Lethbridge-Stewart, and some old enemies, the Cybermen.

The TARDIS arrives on the unnamed planet of the Gonds, who are ruled and taught in a form of self-perpetuating slavery by the alien Krotons — crystalline beings whose ship, the Dynatrope, crash-landed there thousands of years earlier after being damaged in a space battle. The Krotons are in suspended animation, in a crystalline slurry form, awaiting a time when they can be reconstituted by absorption of mental energy. Periodically, the two most brilliant Gond students are received into the Dynatrope, nominally to become "companions of the Krotons", but in truth to have their mental energy drained, after which they are killed.