"Opposites attract" goes the old adage, but there's certainly very little love between reluctant undercover semi-alien Lewis and self-proclaimed alpha-dog border guard Truss as E4's sparky sci-fi comedy continues. Yet, when the latter finds himself stuck in the middle of Troy with the Alien League in hot pursuit, his only exit strategy comes from his least favourite colleague. Lilyhot, meanwhile, has to deliver an ultimatum to Fabien, following an altercation with Antoine.