Colonel Beckett goes back in time to poison a physician who unintentionally spread a global pandemic. When the traveler returns to the future, nothing has changed. Though haunted by the plague death of his own family, the Colonel is ordered to an earlier time, to assassinate a young woman carrier, plus the physician.
A couple flee a present-day religious community they've joined but find it's entirely surrounded by an invisible wall. They're the parents of the totally isolated cult's first child, who has a mysterious scar from a ceremony by the cult leader, who they caught sneaking off into the forest and teleporting into thin air. They're spotted by another malcontent, who's been searching for a way out for months. With nowhere to go and everyone else entranced by the idyllic new life, what can they do?
Explorers, including an astrophysicist member of the Navajo tribe and her medical doctor husband, are sent through a hole which scientists have torn in the universe to study the effects of trans-space on humans.
A 60s radical's daughter ventures back in time to undo the bombing which killed him. But the time travel institute who recruited her as a trainee races to stop her before she irreparably damages the future. The institute plucked Lorelle out of a fatal car wreck, so she can't return to 1989, but her mother is devastated by her husband's death, so Lorelle hopes to affect the past to improve her mother's life.
A single mother's memories of being abducted by aliens resurface when her story appears in a newspaper article. Her moody teenage daughter has an English teacher that is helping her, but also seems familiar to her mother.