Pete, the owner of a pet store filled with animals with interesting personalities, falls ill and the animals are left alone to run the store and survive. A street rat enters the store and tries to take over. The animals have a hard time trying to figure out how to run the store and, to make matters worse, they start to fight amongst themselves. The store needs a great leader urgently before they run out of food.
Shimano is an adventurous fish who, together with her friends, discovers a mud monster in their dam. They manage to alert the humans who also uncover all the garbage in the dam and decide to close it down. Now Shimano and her friends must race against time as the water in their home starts to disappear through a mysterious portal. Can Shimano and her friends save the others in the dam?
