A BLACK-TIPPED FIN WENT GLIDING PAST . . . THEN ANOTHER . . . THE NEXT ONE WAS EVEN CLOSER. There's no rest for Mission Fox - not even when they're on holiday! Off the coast of Reef Island, Harry and Jordan spot a baby dolphin in trouble. But is Mission Fox a match for a ring of hungry sharks? IT LOOKS LIKE THEIR SCARIEST MISSION YET . . .