Sci-fi comedy set in 2151 that follows spaceship HMS Camden Lock as it goes about protecting British interests in a changing galaxy. Entrusted with leading the convoy guarding Britain's new super-weapon, the Camden Lock's position is betrayed. There is a traitor aboard and all the officers are under suspicion. There is desperate race against time to find the mole before Earth is destroyed. Only Vine's new gadget offers any respite from the mounting tension.