Bigweed and Little Seaweed are at it again. This time, they are after a white kelp in a shark country for a potion to take over Snorkland. They steal the kelp and put a phony one in its place. Meanwhile, Junior finds an ad to make big money and Grandpa Wetworth finds an ad as well. Junior and Grandpa have a race, Junior wins and brags about his youth. Grandpa thinks that he is too old to live and is very insecure about himself. Casey tells him that he needs to have some fun in his life, so she and All-Star take him to a snorkboard park. That falls through, and Grandpa threatens to go to an old snorks' home. Granpa meets an old snork named Rose. Meanwhile, the bombs that Bigweed made turns everyone into babies! Meanwhile, Junior visits Grandpa and Rosie and they go into town where they notice the baby mayhem. They notice that Bigweed has taken over and Grandpa tries to get the seniors together to stop him. He gives the old people spirit and the verve that they need to come up with a big