S01:E01 - Darkness Rising, Pt. 1
The return of the Decepticons.
S02:E01 - Orion Pax - Part 1
Megatron manipulates the impaired Optimus into joining the Decepticons.
S02:E02 - Orion Pax - Part 2
Jack learns how to restore Optimus' memory.
S02:E03 - Orion Pax - Part 3
Optimus rebels against Megatron; Autobots try to get their leader back.
S02:E04 - Operation Bumblebee - Part 1
Bumblebee questions his worthiness to his team after he is compromised.
S02:E05 - Operation Bumblebee - Part 2
Bumblebee discovers that MECH and Starscream are responsible for his troubles.
S02:E06 - Loose Cannons
A legendary Autobot returns to Earth to look for a new Decepticon.
S02:E07 - Crossfire
Arachnid and Starscream struggle to control an Insecticon warrior.
S02:E08 - Nemesis Prime
Optimus Prime becomes destructive, while MECH reveals the master plan.
S02:E09 - Grill
Agent Fowler has some explaining to do under the threat of military tribunal.
S02:E10 - Armada
Bulkhead finds himself trapped on the Decepticon Warship, and caught amidst dual attempts on Megatrons life.
S02:E11 - Flying Mind
When the Dark Energon-infused Decepticon Warship becomes sentient and directly threatens humanity, the Teens discover they are the only ones who can stop it.
S02:E12 - Tunnel Vision
Team Prime splits off in a race to beat Megatron to the next four Iacon relics; the first mission takes Arcee and Bumblebee into New Yorks subway tunnels.
S02:E13 - Triangulation
The second of the relic hunts takes Optimus Prime to the Antarctic, where he engages in shifting alliances between Starscream and Dreadwing.
S02:E14 - Triage
During the third relic hunt, the disabling of Soundwaves deployer creates a unique opportunity for Ratchet and Wheeljack.
S02:E15 - Toxicity
The final relic in the hunt may prove more deadly to Bulkhead than the Insecticon warriors who pursue him.
S02:E16 - Hurt
Miko and Wheeljack embark on a quest for revenge.
S02:E17 - Out of the Past
Arcee and a friend uncover a feat of Decepticon engineering intending to destroy the Autobots.
S02:E18 - New Recruit
Starscream goes on a quest for Red Energon; a new Autobot joins Team prime.
S02:E19 - The Human Factor
Silas is given a new lease on life and approaches Megatron with a plan to join the Decepticon ranks.
S02:E20 - Legacy
Megatron tries to keep Optimus from discovering a legendary weapon.
S02:E21 - Alpha / Omega
Megatron takes extreme measures to harness the power of the Primes.
S02:E22 - Hard Knocks
Knock Out harnesses the power of sound while Starscream the power of hyper speed.
S02:E23 - Inside Job
When Smokescreen is captured, he learns the location of the Omega Key.
S02:E24 - Patch
Starscream proposes a truce with Megatron but Dreadwing threatens to stand in the way.
S02:E25 - Regeneration
The quest for the Omega Lock takes the Autobots and the Decepticons to Cyberton for a battle.
S02:E26 - Darkest Hour
Megatron sets a plan in motion forcing Optimus to make a decision that has a devastating effect.