Time travel lies at the heart of Transformers: War for Cybertron: Kingdom, and the series goes to some lengths to establish the 'rules' by which it operates within the franchise. But just how does this work, and what does it mean for the heroes and villains of the Transformers: War for Cybertron trilogy? In this case, the idea of the Multiverse neatly explains all the countless reboots and relaunches because the various comics, animated series, and movies can all be set in subtly different timelines. Multiverses are all the rage in popular culture right now - even Buffy the Vampire Slayer has a Multiverse - so it isn't really a surprise to see one used in Transformers as well. Related: Transformers: War for Cybertron - Netflix Controversy Explained It also established the loose 'rules' of time travel in the Transformers franchise, exploring the Multiverse.

The dependence on time travel made for a surprising end to the Transformers: War for Cybertron trilogy, with several character arcs taking unexpected directions. It didn't take long for time travel to move to the center of the story, with the heroes and villains forced to unite against enemies from this future timeline.

This naturally meant the already vast cast of the trilogy swelled, with the more familiar Robots in Disguise coming face to face with the likes of Optimus Primal, a new Megatron, and the manipulative Blackarachnia.

Kingdom drew inspiration from the classic Transformers: Beast Wars cartoon, which introduced the Transformers' time-traveling descendants - the heroic Maximals and the villainous Predacons.

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