Ep 13. Trick-or-Treat, Mr. Grumpfish!

In Bubble Guppies season 4 episode 13, "Trick-or-Treat, Mr. Grumpfish!," the guppies are excited for Halloween and can't wait to go trick-or-treating. However, they encounter Mr. Grumpfish, who doesn't understand the concept of Halloween and refuses to give out candy. The guppies decide to teach him about Halloween and its traditions, hoping to get some treats in return. They explain the concept of costumes, spooky decorations, and of course, trick-or-treating. Throughout the episode, the guppies perform various Halloween-related activities, including carving pumpkins and dancing to spooky music. Meanwhile, Mr. Grumpfish slowly starts to understand the fun and excitement of Halloween, and eventually decides to join in on the festivities. The guppies are thrilled when he finally hands out candy, and Mr. Grumpfish realizes that Halloween can be a lot of fun after all. The episode ends with the guppies enjoying their candy and thanking Mr. Grumpfish for joining in on the Halloween fun. Overall, "Trick-or-Treat, Mr. Grumpfish!" is a fun and educational episode that celebrates Halloween and the importance of sharing and understanding.