Transformers: EarthSpark, Legacy of Hope - Part 1

Hometown Heroes - Part 1: Robby's caught abusing his powers, so Mo and "Detective" Thrash team up to prove their brother's innocence. Meanwhile, Twitch becomes her own worst enemy... (S4, ep 1)

Hometown Heroes - Part 2: The Maltos must rally to stop a new threat, but it might cost them everything. (S4, ep 2)

Legacy of Hope - Part 1: The heroes search Cybertron for all that they've lost, and find a new enemy. (S4, ep 3)

Legacy of Hope - Part 2: Low on power and hope, the Maltos and the Autobots struggle to stay united. (S4, ep 4)

Legacy of Hope - Part 3: Twitch, Robby, and Optimus Prime face their greatest challenges alone. Each must succeed if they're to stand a chance at defeating the rising evil. (S4, ep 5)