Each trilogy within the larger Ark Royal series centers around a single ship and an associated alien contact story line. The initial trilogy featured an outdated carrier class ship, Ark Royal, and first contact with the race that became known as the tadpoles, which led to an interstellar war. The second trilogy featured a heavy cruiser class ship, Warspite, and first contact with the planet Vesy that contained a reptilian race not as technologically advanced as humanity. The Warspite trilogy had us fighting amongst ourselves and it just wasn't as good as the original. This third series features the first ship from a new class of battleship, Vanguard, and another story of interstellar war that hopes to recapture the glory of the initial series. Does it work?
Vanguard - the start of the 3rd Ark Royal trilogy.