Cinema "Die drei ??? - Toteninsel"

No sooner have the summer holidays begun than Justus, Peter, and Bob start planning a road trip. But before they can set off, an anonymous call to headquarters throws their plans into disarray: a new case awaits the three detectives. Their investigation leads them to a mysterious secret society called Sphinx, led by the elusive Professor Phoenix and his assistant Olin, who conduct illegal excavations and sell the stolen artifacts for profit…