The team must battle the French, Indians and Mother Nature after Flynn sabotages the Lifeboat and traps them back in Western Pennsylvania circa 1754.

Back in 1969, the team goes undercover at NASA to stop Flynn from sabotaging the moon landing and killing the crew of Apollo 11.

On the run with the bank-robbing Barrow gang, the team needs to gain the trust of ill-fated lovers Bonnie and Clyde in order to find out Flynn's target in the Depression-era South. While Agent Christopher tracks down a lead in present day, Lucy, Rufus, and Wyatt risk getting caught in the crossfire, suspecting that whatever Flynn's after may be a key piece of the whole puzzle.

A stunning turn during the American Revolution prompts Lucy, Wyatt, and Rufus to question whether they've been fighting on the wrong side this whole time. While Agent Christopher prepares for the worst back in present day, the team encounters the Father of the Country, makes a dubious pact, and confronts the possibility they may not be a trio for long.

Lucy's situation grows desperate after she's taken captive by Flynn and brought to the 1893 Chicago World's Fair. In their dogged pursuit of Lucy, Wyatt and Rufus fall into a sinister trap.