Kako, Oobi and Uma are in the park playing superheroes. They fly around the park doing good, simple superhero deeds. Finally, they come upon a woman's cat who is stuck in a tree. With Grampu's help, Oobi, Kako and Uma help save the cat! Grampu is very proud of them. — NickJr.com (source)
Uma and Grampu are setting up a picnic at the park. Oobi and Kako run by them, wearing superhero capes. The boys introduce themselves to the viewers as "Super-Oobi" and "Kako-Man", a pair of crimefighters. Uma asks if she can play along with them, and the boys give her a cape. She calls herself "Booma" and joins the boys on a search for people in need of help. The kids come across a little girl who can't fit a straw in her juice box. The superheroes help her and look for another problem to help with. They hear a meowing sound and find out that it's coming from Kitty, Mrs. Johnson's pet cat. Kitty is stuck on a tree branch and can't get down.
Mrs. Johnson walks by and asks the superheroes to bring her pet down safely. Oobi calls for Grampu, who can't think of a way to bring the cat down. While the kids try to find a way to help, an interview segment plays. It features Inka asking a girl about superheroes. The scene cuts back to Oobi, who asks Mrs. Johnson what Kitty likes. She tells him that Kitty loves fish. Oobi takes a tuna fish sandwich from Grampu's picnic basket and decides to lure Kitty down with it. The kids stack on top of each other to show Kitty the sandwich.
Oobi asks the viewers to help call Kitty. He manages to get her attention and shows the food to her. Kitty slowly walks down to take the sandwich. Mrs. Johnson holds her pet and thanks the kids for their help. The superheroes cheer and say that they've saved the day for real. Grampu is especially proud and asks if he can give the heroes a hug. They all do a group hug and wave "goodbye" to the viewers, ending the episode.