Retrograde

"In the past... Lies our future."

Two time travelers with opposing views are sent back to the present aboard a research ship in the Antarctic to prevent a global biological disaster from occuring

Retrograde

Doctor Who: The Time Monster

Doctor Who: Carnival of Monsters

Doctor Who: Frontier in Space

Doctor Who: Planet of the Daleks

Doctor Who: The Green Death

Doctor Who: The Brain of Morbius

Doctor Who: The Time Warrior

Doctor Who: Invasion of the Dinosaurs

Doctor Who: Death to the Daleks

Doctor Who: The Monster of Peladon

Doctor Who: Planet of the Spiders

Doctor Who: Shada

Doctor Who: Full Circle

Doctor Who: State of Decay

Doctor Who: Warriors' Gate

Doctor Who: The Keeper of Traken

Doctor Who: Logopolis

Star Trek II: The Wrath of Khan

Star Trek III: The Search for Spock

Back to the Future Part II

Doctor Who: The Time Monster

Doctor Who: Carnival of Monsters

Doctor Who: Frontier in Space

Doctor Who: Planet of the Daleks

Doctor Who: The Green Death

Doctor Who: The Brain of Morbius

Doctor Who: The Time Warrior

Doctor Who: Invasion of the Dinosaurs

Doctor Who: Death to the Daleks

Doctor Who: The Monster of Peladon

Doctor Who: Planet of the Spiders

Doctor Who: Shada

Doctor Who: Full Circle

Doctor Who: State of Decay

Doctor Who: Warriors' Gate

Doctor Who: The Keeper of Traken

Doctor Who: Logopolis

Star Trek II: The Wrath of Khan

Star Trek III: The Search for Spock

Back to the Future Part II