"Gekko, Master of the Deep" is the second segment of the 10th episode in Season 2 episode of PJ Masks.
Romeo turns Robot into Roboctopus, who uses his long arms to steal all metal objects from the city and turn them into more arms for himself. Since he's hiding underwater, Gekko is the only one that can reach and stop him. But Gekko is afraid to go into the cave Romeo and Robot are using as a hideout, yet he doesn't want to admit this to Catboy and Owlette.
The following characters appeared in the episode "Gekko, Master of the Deep":