Harry and His Bucket Full of Dinosaurs (2005)

S2E46 That's Strong

Title: That's Strong Plot: Nana is decluttering her space, and Sam assists her in transporting some hefty boxes to the car for the school jumble sale. Harry offers to help but soon realizes he's not strong enough for the task! To tackle his weakness, he decides to visit Dino World, especially when he learns that he needs to gain strength to aid Nancy Nanosaurus in lifting Clown Mountain to retrieve an item that has rolled beneath it. The Dinos put Harry through a rigorous workout at their gym, and soon he’s ready to take on the Dino-Meter Strength Tester. With their newfound power, Harry and his friends manage to help Nancy shift Clown Mountain before returning to help Nana with her boxes.