The Rules of Engagement (S01E07)

When Jason learns of Ariadne's betrothal to Heptarian, he is brokenhearted. With nothing to lose and everything to gain, he enters into a brutal fighting tournament to honour the nuptials – lining up with a bevy of terrifying contestants including the undefeated Heptarian. Determined to beat the husband-to-be and show his worthiness, it is up to Jason's loyal friends to guide him through the contest, where there are more than just broken hearts at stake. (BBC)