Max's new best friend, Sharkdog, comes home with him, but keeping him a secret from his parents is a challenge.

Max needs to create a permanent home for Sharkdog and he knows that his best friends, Olivia and Royce, are just the people to help him.

Dad desperately wants to win Garden of the Year but when Sharkdog destroys the garden right before judging, the Sharkpack needs to step in and put it all in order.

Max needs to find more and more fishsticks to keep Sharkdog fed, but his search leads him right into the path of the increasingly suspicious Captain Barb Quigley.