After a horse accident, Karen wakes up to find herself in past Britain, close to Camelot, the famous castle of King Arthur.

Jailed for his reckless driving, rambunctious Mr. Toad has to escape from prison when his beloved Toad Hall comes under threat from the wily weasels, who plan to build a dog food factory on the very meadow sold to them by Toad himself.

Batman must face his most ruthless nemesis when a deformed madman calling himself "The Joker" seizes control of Gotham's criminal underworld.