MacLaren’s leadership is challenged when he’s directed to assist a more experienced team of travelers that wants to join forces.

Philip’s timeline receives an update with some unwanted side effects, Trevor makes a disturbing discovery about his host’s past, and MacLaren deals with the return of a traveler he thought had gone away for good.

While MacLaren, Carly, Trevor, and Philip work with another traveler team to protect a child important to the future, Marcy takes measures to remember her past life – but uncovers more than she bargained for.

The Faction kidnaps Philip and a group of other historians, forcing MacLaren and the team to extract their location from a critically injured Hall.