As New England swelters in the summer of 1914, Detective Isaac Bell is asked to investigate a cache of missing rifles -- only to discover something much more sinister involving a transistor radio set to summon German U-Boats.

Ruthless Austrian entrepreneur Edward Bolcke has managed to steal a crucial component of the U.S. Navy's latest submarine technology--and he has found a way to hijack the world's supply of rare earth minerals. The three Pitts, along with longstanding sidekick Al Giordino, use their usual mix of brains and brawn to see that justice is served.