The colorful and creative Backyardigans imagine themselves below sea level in this collection of episodes. The main attraction is the title episode, "Into the Deep," which finds Pablo and Tyrone pretending to be sea explorers. The intrepid pair soon happens upon two territorial mermaids -- Tasha and Uniqua! Fun songs set to the sounds of Bollywood include "You've Got to Be Brave (In a Cave)" and "Our Garden."