Transformers: Titans Return

Following the end of the Combiner Wars, the Titans are awakened and Trypticon begins to wreak havoc on Cybertron. To combat Trypticon, Windblade gathers up a ragtag team of Transformers to resurrect an "ancient ally". And while some may be forever changed by the events, others may not emerge with their sparks intact.

(Source: Wikipedia)