List of Prime episodes

Season 1: 2010-2011

#	Title	Writer	Director	Original airdate	Production code
1	"Darkness Rising, Part 1"	Duane Capizzi	David Hartman	November 26, 2010
After eliminating Cliffjumper, the Decepticons target Arcee and three humans become involved in the Transformer war.
2	"Darkness Rising, Part 2"	Nicole Dubuc	David Hartman	November 26, 2010
The Autobots attempt to rescue Cliffjumper, whom they believe to be alive, only to discover that the Decepticons have been experimenting on him with Dark Energon.
3	"Darkness Rising, Part 3"	Marsha Griffin	Todd Waterman	December 1, 2010
Optimus Prime and Ratchet go and battle zombies while Agent Fowler is abducted by the Decepticons.
4	"Darkness Rising, Part 4"	Steven Melching	Shaunt Nigoghossian	December 2, 2010
The Autobots and the three kids rescue Fowler while Optimus and Ratchet continue fighting zombies.
5	"Darkness Rising, Part 5"	Joseph Kuhr	Vinton Heuck	December 3, 2010
With Megatron's plan revealed, the Autobots attempt to stop him using the space bridge to send Dark Energon to Cybertron.
6	"Masters & Students"	David Slack	Todd Waterman	February 11, 2011
While Skyquake battles Optimus Prime, Starscream recovers the nearly dead Megatron.
7	"Scrapheap"	Marsha Griffin	Shaunt Nigoghossian	February 18, 2011
While Optimus and Arcee are trapped in the Arctic, the base is invaded by deadly Scraplets.
8	"Con Job"	Steven Melching	Vinton Heuck	February 25, 2011
Bulkhead awaits a visit from his buddy Wheeljack, but his arrival does not go as planned.
9	"Convoy"	Joseph Kuhr	Todd Waterman	March 4, 2011
The Autobots assist Fowler with transporting the DNGS.
10	"Deus ex Machina"	Nicole Dubuc	Shaunt Nigoghossian	March 11, 2011
When Bulkhead makes a discovery in Greece, the race is on to recover an Energon Harvester.
11	"Speed Metal"	Dean Stefan	Vinton Heuck	April 9, 2011
Jack is drawn into the world of street racing to impress Sierra, and is aided by Bumblebee.
12	"Predatory"	Marsha Griffin	Todd Waterman, Kirk Van Wormer (co-director)	April 16, 2011
When Arcee takes Jack on a routine mission, Airachnid turns up, putting him in danger
13	"Sick Mind"	Steven Melching	Shaunt Nigoghossian	April 30, 2011
When Optimus is infected by a Decepticon plague, Arcee and Bumblebee sneak aboard the Nemesis to find a cure.
14	"Out of His Head"	Nicole Dubuc	Vinton Heuck	May 7, 2011
Megatron takes control of Bumblebee's mind.
15	"Shadowzone"	Marsha Griffin	Todd Waterman	May 14, 2011
The kids are trapped in another dimension with Skyquake after the GroundBridge fails.
16	"Operation: Breakdown"	Steven Melching	Shaunt Nigoghossian	June 18, 2011
The Autobots must rescue Breakdown when he is captured by MECH.
17	"Crisscross"	Joseph Kuhr	Vinton Heuck	June 25, 2011
Airachnid teams up with MECH to plot her revenge on Arcee and Jack.
18	"Metal Attraction"	Nicole Dubuc	Todd Waterman	July 9, 2011
The Autobots try to claim a magnetic weapon before the Decepticons get to it.
19	"Rock Bottom"	Tim Jones	Shaunt Nigoghossian	July 16, 2011
The Autobots, Jack and Miko find themselves trapped inside a cave with Megatron and Starscream.
20	"Partners"			July 23, 2011
The team is surprised to learn that Starscream wants to become an Autobot.
21	"One Bot, Two Bots, Red Bots, Blue Bots"
Sierra secretly snuk inside Bulkhead and found Jack at Autobot Base. But when she's Kidnapped by the Decepticons, Jack, Arcee and Wheeljack must team up to save her.