The Thirteen Primes' Chronicles

Once Primus and Unicron were friends. Mentors of the soon to come Thirteen Primes. But soon enough, Unicron began to feel a lust for power that eventually made him the so called "Chaos Bringer" while Primus became the "Peace Maker". How will the Thirteen Primes deal with this? What battles will they have to fight? What challenges will be brought upon them? (IDW Continuity AU)