|Airdate:||September 16, 2011|
- "Fighting a war tests a soldier's skill, defending his home tests a soldier's heart."
"ARC Troopers" is the second episode of Season 3 to air of the television series Star Wars: The Clone Wars, airing on September 17, 2011.
The Republic learns of an impending Separatist attack on Kamino, and Anakin and Obi-Wan hurry to the planet. After the Republic repulses the Separatists' diversionary assault, the real attack begins. Asajj Ventress, General Grievous and an army of droids rise out of the oceans, bent on destroying Kamino's clone production facilities. Rex, Cody, Fives and Echo lead the clones in a desperate defense of their home planet.
When former Domino Squad risked their lives to destroy the Rishi Outpost and warn two Jedi about the incoming invasion, Jedi Generals Anakin Skywalker and Obi-Wan Kenobi led their troopers to Kamino to warn General Shaak Ti and Prime Minister Lama Su of the attack. Echo and Fives are soon seen walking down a hallway, enjoying memories of their last experience on Kamino when they run into 99. He welcomes them, but is sad to discover that he could not return the medal Hevy gifted to the maintenance member.
After some preparation, the Separatist fleet attacks, led by General Grievous. He sacrifices his ships and ships the "debris" down to the surface, where it was met by Dark Acolyte Asajj Ventress. The Jedi above the surface, unaware of the forces below, led on the fight, until General Kenobi got suspicious. Taking a small craft under the water, Obi-Wan finds trident drills and aqua droids assembling craft. The droids chase Obi-Wan to the surface above, barely in time, where the Jedi is met by an aiwha.
The forces below then deploy what they have and the assault on Kamino begins. The trident drills deploy numerous battle droids in hangar bays and hallways, spreading them thin. The CIS commanders then split up: Grievous to the barracks, and Ventress to the DNA chamber to steal the DNA and prevent the Kaminoans from creating more. The two general split up too: Skywalker to intercept Ventress, and Kenobi to duel Grievous. Grievous escaped, and Skywalker manages, along with the help of a clone trooper unit, recaptures the DNA and sends the two generals home in a Kaminoan craft.
While that was going on, Echo and Fives are sniping aqua droids heading their way, and join 99 and a group of lost cadets. They all go to the barracks and get supplies from the armory, preparing to defend themselves from the Separatists. The droids come, are destroyed, but unfortunately, 99 was killed while courageously retrieving more ammunition for his clone brothers.
- Dooku (Mentioned only)
- Jango Fett (Appears in hologram)
- Obi-Wan Kenobi
- Anakin Skywalker
- Lama Su
- Shaak Ti
- TV-94B (First appearance)
- Unidentified ARF Trooper (Kamino) (First appearance)
- Unidentified ARF trooper 2 (First appearance)
- Unidentified clone cadet (First appearance)
- Unidentified naval officer (First appearance)
- Asajj Ventress
- Wullf Yularen
- Astromech Droid
- Battle Droid
- T-series tactical droid
- Tipoca City
- Tipoca City Military Complex
- Tipoca City
- Rishi Moon (Appears in flashback(s))
- Rishi Outpost (Appears in flashback(s))
- ARC Troopers was the second half of the season premiere.
- ARC Troopers is the sequel to the episode "Rookies", although it does not take place immediately afterwards.