Phineas Bogg, a former pirate, is a member of the Voyagers, a group that helps shape history. He travels through time using an "omni," a gold pocket watch-like device, which alerts him to historical inaccuracies by flashing red. When his omni malfunctions, Bogg finds himself in 1982, in the apartment of 12-year-old Jeffrey Jones and his aunt and uncle. After a series of events, Bogg and Jeffrey are stuck in the past together, with Bogg's guidebook lost and no way to return to his own time. However, Jeffrey's knowledge of history, inherited from his late father, becomes their key to navigating time and correcting historical inaccuracies.
Phineas and Jeffrey help the Wright Brothers invent the airplane and Corporal...