Mimi, Panda's owner, is all excited because she is supposed to go to the amusement park with her family, Laura's, and Kana's. However, Mimi's little sister, Tina, gets sick and her parents can't go, so a disappointed Mimi doesn't get to go either. Feeling badly for Mimi, Panda enlists the other Ham-Hams in a plan to cheer her up!