Overview: Murray is doing some exercise today at Wiggle House. He tries to lift the weights, but they're too heavy! Anthony, Jeff and Greg Wiggle decide to do some exercising with Murray, but it's Dorothy the Dinosaur who stuns all of The Wiggles with her big, green muscles! Help Henry the Octopus solve the mystery of his half-eaten seaweed garden, and join Captain Feathersword the Friendly Pirate and Wags the Dog on a treasure hunt at Wiggly Cove!