Fraternal twins Nikki and Nora are forced back into each other's lives when they inherit a detective agency. As they solve a murder, they realize their differences may be their greatest advantage.

During the darkest days of the Cold War, a consortium of corporations and government agencies conducted secret research into time travel. Decades later, a couple of backyard mechanics uncover a smuggled cache of documents from those officially-forgotten experiments. Hacking together their own device tests their know-how, their dreams of sudden wealth, and their friendship. Can they survive the limits of dwelling in the past?

Wyatt Earp's great granddaughter Wynonna battles demons and other creatures with her unique abilities and a posse of dysfunctional allies - the only thing that can bring the paranormal to justice.