Missing in action! Anakin
Skywalker's heroic droid
navigator R2-D2 was lost in
battle. When a desperate
search fails to locate Artoo,
Anakin is forced to take on
a new navigator, R3-S6.
Now the Jedi embark on a
dangerous new mission, to
find a secret enemy listening
post. Meanwhile, R2-D2 has
fallen into the hands of a
vile droid smuggler and is
on his way to General Grievous
who will surely plunder the
Republic's secrets hidden
within him....
Artoo manages to transmit the location of Grievous' listening post on a Ruusan moon, which the Twilight picks up. Though advised by Obi-Wan to wait for reinforcements, Anakin heads a rescue mission to save Artoo before his secrets fall into Separatist hands, as well as plant a bomb. Gha Nachkt accesses Artoo's memory bank and finds that the little droid contains every Republic strategy. He demands more money but Grievous decides to give it to him by stabbing him in his back with his lightsaber. When the team arrives at the station, Anakin separates from Ahsoka and the clones, heading out alone to find Artoo. Unbeknownst to them, R3-S6 is actually a spy for the Separatists, and alerts General Grievous to their presence. Tano and the clones infiltrated the reactor control room, but they had to confront and eliminate the security battle droids. After that, Grievous orders his IG-100 MagnaGuards to take Artoo to the ship.
Meanwhile, Anakin has succeeded in finding R2-D2, and duels Grievous' MagnaGuards. Once they are defeated, he and Artoo order everyone to rendezvous in the south hangar. Unfortunately, Ahsoka does not hear them, as Grievous has engaged her and her clones. The general kills all clones but Rex and Denal. Ahsoka defends herself against Grievous's blows and retreats to a room filled with spare droid parts. She hides from the general, but R3 gives her away. Grievous destroys her comlink, and she manages to escape through a vent. As Anakin and the clones, who have succeeded in planting the bombs, meet the Twilight in the hangar, R3's treachery is revealed when he traps them and activates several droids to fight them. Anakin orders Artoo to open the doors. Ahsoka rejoins the team, who defeats the Vulture droids and escapes in the Twilight, detonating the bombs. Grievous escapes the station in his ship, Soulless One. Anakin leaves in his starfighter to pick up Artoo.
Meanwhile, Artoo manages to open the hangar doors, but R3 moves to intercept him, and the two droids face each other in combat. Artoo pushes his Separatist counterpart over the edge, but R3 grabs him with a suction cup. Artoo succeeds in cutting the cable, and R3-S6 is sent flying into the air, and he is destroyed by flying debris. Artoo is then rescued by Anakin.
As they leave the system, Anakin contacts Obi-Wan. While they succeeded, Obi-Wan disapproves of Anakin's choice to risk the mission and all their lives to save a droid. While Ahsoka is happy they got R2 back, she agrees with Obi-Wan. But Anakin says R2 is more than a droid: he is a friend.
The Decoded version of the episode reveals that Gha Nackht was a level 5 droid programmer, that R3-S6 was captured by Grievous's agents and reprogrammed on the planet Milagro, and that clone trooper Denal served with Rex on Geonosis.
In the original broadcast version, there is a scene where after Ahsoka says to Anakin, "I hope you find Artoo in one piece.", in which Anakin replies "Get going, Snips.", after which Ahsoka says to Rex and the rest of the clone troopers, "Looks like it's up to us to complete the mission, as usual." and walk off as the scene fades out to the commercials. The scene however was cut from the DVD release of Season One and goes right to the scene where Gha Nachkt ripping R2-D2 apart to plunder Republic info for GeneralGrievous after the commercials.
An IG-100 MagnaGuard is decapitated and does not continue fighting.
Grievous's hand is fixed when he leaves in his starfighter after being cut off (probably because the same scene was also used in Destroy Malevolence, but reversed).
Anakin encounters a MagnaGuard, despite later having commented on how he had only read about them in the novelization of Revenge of the Sith.
When R2-D2 is on the table, his eye socket is seen unattached momentarily when it shouldn't have been.
When Grievous grabs Ahsoka, her teeth are shown. However her canines do not appear to look like the enlarged canines Togruta known for.