Nitro and Apollo prank Dynamite turning her into a singing banana! The other Gladiators have fun behind the scenes and pranking the audience at Sheffield Arena.

Giant is pranked by Nitro when he appears as a guest of honour at a fake school award ceremony! The other Gladiators have sneaky fun backstage at Sheffield Arena.

Nitro and Phantom prank Fire at a kids' birthday party! The rest of the Gladiators have fun behind-the-scenes and pranking the audience at Sheffield Arena.

Nitro pranks Apollo with fake influencer Aubry Devonne Keep, causing a big splash! The other Gladiators have fun behind the scenes and pranking the audience at Sheffield Arena.

Nitro and Sabre prank Steel at a fake Halloween photoshoot with a huge spider costume, bats and a surprising ghost! The other Gladiators have fun behind the scenes at Sheffield Arena.

Nitro and Fury prank Cyclone, who thinks she is filming an animal-themed exercise video dressed as a turtle. The other Gladiators have fun pranking the audience at Sheffield Arena.

Nitro pranks Diamond when the guest on a live TV show can’t stop pumping! The other Gladiators have fun behind the scenes, pranking the audience at Sheffield Arena.

Nitro pranks Apollo again - this time he thinks he is filming for a Gladiator video game set in ancient Greece. And the other Gladiators have sneaky fun backstage at Sheffield Arena.

Nitro pranks Viper with a fake interview that ends with an unexpected splashdown, but he doesn’t find it funny! The other Gladiators have sneaky behind-the-scenes fun at Sheffield Arena.

Nitro pranks Hammer with a hysterical, historical Gladiator mix-up in a magazine interview, and the other Gladiators have sneaky backstage fun at Sheffield Arena.

Bionic ends up dressed as a rabbit when Nitro pranks him at a fake photoshoot, and the rest of the Gladiators have fun behind the scenes as they prank the audience at Sheffield Arena.

Nitro pranks Electro at a fake fashion photoshoot when her fabulous, precious dress is ruined. Meanwhile, the other Gladiators are up to mischief behind the scenes at Sheffield Arena.

Nitro and Diamond prank Comet at a fake Christmas calendar photoshoot. The other Gladiators have sneaky fun pranking the audience at Sheffield Arena.

Nitro and Bionic prank Athena as a massive broccoli at a fake healthy eating film shoot. Meanwhile, the other Gladiators are up to mischief behind the scenes at Sheffield Arena.

Phantom is pranked by Nitro and Steel when he believes he’s in a new Gladiators video game, and the other Gladiators have fun pranking the audience behind the scenes at Sheffield Arena.