TV Guide Nickelodeon Friday

Monkey goes looking for a star for Papa Smurf in 'Reaching for the Stars', then in 'The Dream Team', Handy puts together an A-team to get his jet pack back from Gargamel's hovel. (S3, ep 8)

Plankton goes to jail, but the secret formula is taken as evidence! SpongeBob and Mr. Krabs plot to get it back. Sandy struggles to build a ship-in-a-bottle before a big contest, so SpongeBob calls in a little extra help

The long-lost episode of Mermaid Man is finally showing in 'Appointment TV', and then in 'Karen's Virus', Karen gets a computer virus, and it's up to SpongeBob to get it out of her

Squidward takes a new job as Manager of Weenie Hut Jr's in 'Wiener Takes All', then in 'Stuck in an Elevator', Squidward gets trapped on his way to return a nearly overdue library book. (S15, ep 5)

Two familiar faces from SpongeBob's past visit Bikini Bottom in 'Something Narwhal This Way Comes', then in 'C.H.U.M.S', After falling down the drain, Plankton finds an unlikely ally in the sewers

Vanzilla seems too broken down to ever drive again in 'Leave No Van Behind', then in 'Sponsor Tripped', Lynn and friends enjoy free perks around Royal Woods when their team gets sponsored.

The wise-cracking blue hedgehog, made famous by a series of popular video games on Sega consoles, continues his computer-animated adventures through the Shatterverse. At the end of the first series, the eponymous spiny mammal (voiced by Deven Mack) learnt from black hedgehog Shadow (Ian Hanlin) that the original version of Green Hill no longer exists. Sonic is trapped in a multiverse of mayhem with different iterations of his friends Amy Rose (Shannon Chan-Kent), Knuckles (Adam Nurada), Rouge (Kazumi Evans) and Tails (Ashleigh Ball). Sonic and Shadow must put aside their differences and work together to repair the temporal damage and outwit diabolical scientist Dr Eggman (Brian Drummond)

The heroes in a half shell come to terms with their new roles as saviours of New York City in an animated series set shortly after the events chronicled in the film Teenage Mutant Ninja Turtles: Mutant Mayhem. Donatello (voiced by Micah Abbey), Leonardo (Nicolas Cantu), Michelangelo (Shamon Brown Jr) and Raphael (Brady Noon) experience the usual growing pains of teenagers while contending with the media spotlight. Building on their friendship with aspiring reporter April O'Neil (Ayo Edebiri), the reptilian quartet face brilliant inventor Bishop (Alanna Ubach), who believes mutants are the greatest danger facing humankind and must be eliminated. Meanwhile, pampered rich kid Rod (Pete Davison) yearns to be a mutant and leverages his wealth and connections to achieve a dangerous dream

Squidward's amazing new life is threatened in 'Squidness Protection', and in 'Dome Alone', stuck in her dome, Sandy suspects Plankton's up to no good and recruits Patrick to investigate. (S15, ep 6)