Out of Time - Part 1: On Cybertron, Galvatron tries to force Xaaron to reawaken Primus before he is found out by Unicron. Meanwhile, the planet eater himself dispatches Hook, Line and Sinker to find out where Galvatron is. On Earth, the Neo-Knights take on Scorponok. Shockwave see this and decides Circuit-Breaker is too dangerous to live. He shoots her, but she assumes it was Nightbeat, who has arrived with Optimus to try and diffuse the situation. Blackrock tries to persuade Circuit-Breaker Nightbeat isn't to blame, but she refuses to listen and turns to attack the Autobots claiming all robots are bad.
The Enemy Within 3.2: Previously printed in #15.
Elsewhere, Transformation informs readers that this issue's free Beetlejuice joke book will be followed by a competition next issue; Landmine features in the A-Z; the sad tale of Earthquake and Tornado unfolds in The Enemy Within; Joanne Giggly threatens to smack Mutant Master's legs; and on the letters' page, Blaster explains that the transforming robot seen in the new Renault Clio advert is a Decepticon Powermaster whose Nebulan companion is called Patra.
Not sure if this is the advert in question, but it's from about the right time:
Out of Time - Part 2: Galvatron battles Hook, Line and Sinker on Cybertron. On Earth, Mindwipe hypnotises Soundwave but is then forced at gunpoint to follow orders from Kup. Optimus is attacked by the Neo Knights while Shockwave tries to terminate Scorponok. Blackrock sees this and manages to gain Circuit Breaker's attention, pointing out Shockwave was originally responsible for her condition. She unleashes a tremendous blast at Shockwave that knocks them both out. In the aftermath, Scorponok agrees to a truce with Prime, but the pair of them and the Neo Knights suddenly vanish in a flash of light. On Cybertron, Primus begins to speak to Galvatron through Xaaron. In the void, the Matrix awakes.
The Enemy Within 4.1: Previously printed in #16.
Elsewhere, Transformation tells readers to look out for the amazing Beetlejuice competition on page 13, in which readers can win a Vanishing Vault playset by completing a comprehension test; Colin eats a bad egg and is transformed into the New and Crucial Combat Colin; and on the letters' page, Ian Hewett of Swansea identifies that the curiously familiar cover to issue 305 is the calendar poster from issue 29, and Blaster reveals that when it comes to football, he supports non-league no-hopers Throttlebot Wanderers.
The Void - Part 1: On Cybertron, Primus speaks through Xaaron to tell the tale of how he and Unicron became planets, having assembled the Transformers from Earth and Cybertron to hear him. Optimus becomes concerned as he listens. Meanwhile, Grimlock returns to the Ark with the restored Dinobots to find it empty and begins using Nucleon to resurrect dormant Autobots, not realising Megatron is among them. Blackrock and the Neo Knights have also been transported to Cybertron, but Primus isn't interested in listening to Prime's requests to return them to Earth. Beneath Cybertron's surface, a group of Transformers allied to Unicron cry for the death of Optimus.
The Enemy Within 5: Previously printed in #17.
Elsewhere, Transformation takes a break to make way for the void and to ensure the big double page spreads on pages 4-7 stay intact; Dreadwind features in the A-Z; the new super-cool Combat Colin is attacked by the Hoppy Shopper; and on the letters' page, Blaster advises that the X-Men will feature in a new Marvel comic coming soon, while David Lawrence of Victoria Australia asks what chance there is of a real-life Transformers movie, to which Blaster suggests Sylvester Stallone could voice Grimlock and Dudley Moore, Unicron.