List of Transformers Animated episodes

Spoiler warning: Plot details follow. Please give an expiry date ({{spoiler|(story)|DATE}}) - either the date of the next episode/issue in the series or 30 days after release, whichever is sooner

Season 1: 2007/2008—?

#	Title	Writer	Director	Original airdate	Production code
1	"Transform and Roll Out!" (Part One)	Marty Isenberg	Matt Youngberg, Yutaka Kagawa, Minoru Yamaoka, Makoto Fuchigami	December 26, 2007
Optimus Prime and his small crew of Autobots come into possession of the All Spark, a powerful Cybertronian artifact that attracts the attention of their long-forgotten enemies—the Decepticons—and sends them crashing to a strange and distant planet known as Earth.
2	"Transform and Roll Out!" (Part Two)	Marty Isenberg	Matt Youngberg, Yutaka Kagawa, Minoru Yamaoka, Makoto Fuchigami	December 26, 2007
3	"Transform and Roll Out!" (Part Three)	Marty Isenberg	Matt Youngberg, Yutaka Kagawa, Minoru Yamaoka, Makoto Fuchigami	December 26, 2007
4	"Home Is Where the Spark Is"	Michael Ryan	Matt Youngberg, Shunji Oga	January 5, 2008
The Autobots settle into their new home base, an abandoned automobile manufacturing plant, but the ancient assembly line machinery seems to have developed a mind of its own.
5	"Total Meltdown"	Rich Fogel	Matt Youngberg, Naoto Hashimoto	January 19, 2008 in Canada
A bio-engineering genius experiments with some of Bumblebee's hydraulic fluid and accidentally transforms himself into Meltdown, whose corrosive touch can melt anything—including Autobots!
6	"Blast from the Past"	Kevin Hopps	Irineo Maramba, Ben Jones, Kentaro Mizuno	January 12, 2008
Professor Sumdac upgrades a trio of animatronic dinosaurs from a local theme park, but the creatures develop minds of their own and become rampaging Dinobots, bent on destroying the Autobots.
7	"Thrill of the Hunt"			January 19, 2008
While the Autobots encounter a mysterious muscle car creating havoc in Detroit, Ratchet keeps flashing back to his "tour of duty" in the Great Autobot-Decepticon War.
8	"Nanosec"			January 26, 2008
Bumblebee's self-proclaimed title as "fastest thing on wheels" is threatened by Nanosec, a super speedster crook on a deadly mission that could destroy all of Detroit.
9	"Along Came a Spider"
Bumblebee and Bulkhead's first Halloween turns even spookier when they encounter a giant spider that turns out to be the deadly Decepticon Blackarachnia.
10	"Sound and Fury"
Sari's new toy musical robot seems to have an evil streak—and the ability to control other machines—but Bulkhead is the only one who sees it.
11	"Lost and Found"
The Autobots clash with Decepticons Lugnut and Blitzwing, who come to Earth searching for their missing leader, Megatron.
12	Survival of the Fittest
Sari is kidnapped and the evidence points to the Dinobots. So Prowl & Bulkhead head to a mysterious island to investigate—with a highly suspicious Captain Fanzone on their tail.
13	Headmaster
A disgruntled Sumdac employee seeks revenge and profit by taking control of one of the Autobots and sending him on a rampage.
14	Nature Calls
Prowl, Bumblebee and Sari get more than they bargained for when they head out to the remote woods to investigate a mysterious energy signal.
15	Megatron Rising, Part One
Prime begins to doubt his leadership abilities as the Decepticons mobilize for a big invasion of Earth.
16	Megatron Rising, Part Two
The Autobots are decimated by the Decepticon invasion, but still must rally to prevent the All Spark from falling into their clutches.
17	The Elite Guard
The Cybertron Elite Guard arrives on Earth to retrieve the All Spark and relieve Prime and his crew of their post, but they prove less than adept at blending in with the human world.
18	Return of the Headmaster
Optimus Prime is forced to team up with his rival Sentinel Prime after Sentinel has a humiliating and potentially fatal encounter with the Headmaster.
19	Mission Accomplished
Convinced there are no Decepticons left on Earth, the Elite Guard prepares to take Optimus Prime and his crew back to Cybertron, unaware of the increasing Decepticon activity taking place under their very noses.
20	Garbage In, Garbage Out
All Spark energy turns junk pile into a sentient robot who tries to help the Autobots, but ends up doing more harm than good.
21	Velocity
Investigating a mysterious race car, Bumblebee gets involved with an illegal underground street racing circuit, which also captures the attention of the Decepticons.
22	Rise of the Constructicons
Bulkhead befriends a pair of construction vehicles brought to life by All Spark energy. But the Decepticons have their scanners set on the duo for their latest construction project.
23	A Fistful of Energon
Prowl goes off on his own to capture the fugitive Starscream, but finds some competition in the form of a Decepticon bounty hunter.
24	S.U.V. - Society of Ultimate Villainy
Aided by a mysterious benefactor, Detroit's B-level villains team up to take down the Autobots once and for all.
25	Autobot Camp
On the trail of an escaped Autobot traitor, Bumblebee flashes back to a previous encounter with the traitor when he first met Bulkhead in Autobot Boot Camp.
26	Black Friday
Blackarachnia enlists Prometheus Black, also known as Meltdown, to aid her with a dangerous experiment, while Prime and Grimlock are forced to team up to stop them.
27	Sari, No One's Home
Left alone in the Autobots' home base, Sari must defend it against an intrusion by the Constructicons.
28	A Bridge Too Close, Part One
The Decepticons kidnap Bulkhead to aid in Megatron's ultimate plan to take over Cybertron.
29	A Bridge Too Close, Part Two
The fates of Cybertron and Earth lie in the balance as Optimus Prime and his Autobots battle Megatron and his Decepticons in a fight to the finish.

From Teletraan I: The Transformers Wiki, a Wikia wiki.