When 10,000-year-old Mortimer DeVere and his crew of accidental time-travellers find themselves slap-bang in the middle of World War Two, things start looking pretty dicey.
And with evil Adolf Hitler on the scene, the situation becomes positively lethal.
But when the gang escape the clutches of the nasty Nazi and his trigger-happy troops they find that, in comparison to where they end up, wartime Berlin is ein walk in the park.
As he faces an army of vicious Vikings, demented dinosaurs and nutty nudists, Mort discovers that ripping a great big hole in the fabric of time was probably not one of his better ideas . . .