The second episode in "The Riddle Solvers" series (following Riddle in a Bottle, Mountainfilm 2009), The Shark Riddle, is a half-hour shark film for the whole family. Follow siblings Laura and Robert on an adventure through the pages of a magical journal to solve a mysterious riddle about shark teeth. Meet a raucous group of singing sea lions, hear a shark lullaby, and experience the underwater game show "Are You a Shark?"