Rabbids Invasion (2013)

S4E1 Mad Rabbid And The Secret Of The Flying Submarine

The Rabbids stumble upon a submarine hidden beneath a mountain of debris and decide to make it their new residence. Within this quirky vessel, they encounter a robot who mistakenly thinks the Rabbids are his "masters." This episode spans a full 21 minutes, diverging from the usual format of three 7-minute segments seen throughout the season.