An earthquake in Rocky Beach! The terrified inhabitants leave the town to find shelter at the close beach. Only the three ??? stay calm and discover strange things going on in the deserted town.

In Rocky Beach, California, live the three detectives: Justus Jonas, Peter Shaw and Bob Andrews. Together, they are The Three ??? and there is nothing they don't take on!

The three friends witness exciting detective stories, solve puzzles no matter how tricky, and can always rely on each other.