Glitter with Teaspoons and the Gunge Tank of Doom

The Officially Competitive heroes are engaged in a sparkly contest to move glitter with a teaspoon, then later one of them faces a trek to the gruesome Gunge Tank of Doom. Also, a flying quad bike from America, multi-medal-winning Olympic gymnast Becky Downie defies belief on a balance beam and two monster trucks rampage around a field in Australia - on two wheels.