Octonauts· Season 3 · Episode 19The Hammerhead SharksS03E19·September 21, 2015·11m·CBeebiesThe Octonauts meet some hammerheaded sharks, however, they can't sleep too well because Shellington and Professor Inkling have been arguing about who is smarter that they are no longer friends.Streaming on (US) See allSharePreviousThe Urchin InvasionS03E18NextThe Loggerhead Sea TurtleS03E20Keep goingSeasonSeason 3 ranked & reviewedEvery episode in airing order with ratings and dates.StreamWhere to watch OctonautsEvery streaming service and region, checked around the clock.MatchupShows like OctonautsThe closest matches, ranked by overlap and rating.
