Each episode involves performers walking through a door into an unknown situation, greeted by the line "Thank God you're here!". They then had to improvise their way through the scene. At the end of each episode a winner was announced.

On the voyage from Old Earth to New Earth, a freak accident causes the Dogstar, a giant space ark containing all of the world's dogs, to become lost to mankind.

Comedy Slapdown is an Australian television improvised comedy program produced by FremantleMedia, that first aired on The Comedy Channel from 8 November 2008 at 7:30pm. The show is hosted by H.G. Nelson and feaures a variety of comedians participating in theatresports Matt Parkinson heads up the judging panel which includes one other celebrity judge and one judge selected from the audience. Notable guest comedians include Corinne Grant, Tom Gleeson, Natalie Garonzi, Matt Tilley and Julia Zemiro. The premise of the show can be compared to the popular improvisational comedy program 'Whose Line Is It Anyway?' with various improvisational comedy games played as the teams compete against each other.

All the world's dogs are lost in space. It's up to the Clark kids to find them and bring them all safely home before Christmas.