Tomis and Lilly annoyed their mother so she sent them outside to play. They went to a nearby huge lake as that usually calmed them down. They found an abandoned boat and decided to row out onto the lake. While out on the boat, they got scared because there were sharks in the water. Lilly fell out of the boat and Tomis didn't notice, rowing back without her. When Tomis returned home without Lilly, his mother was angry and sent him to his room while she went to search for Lilly. Lilly's mother eventually found her safe with a cat on a blow up shark. They returned home together relieved that everyone was accounted for and safe.