The Time Warp Trio is staying home for once, and Joe's got a perfect way to keep The Book from getting lost. But when the guys find themselves stuck on top of the half-finished Brooklyn Bridge, they realize that Joe's foolproof Book Tracker wasn't so foolproof after all. Now the guys have to make their way through 1877 Brooklyn and find The Book before they un-invent the lightbulb, the phonograph and–oh, no!–baseball!