"Unfinished Business" Episode Guide | The Clone Wars - Season 7, Episode 4

Mace Windu, Obi-Wan Kenobi, and Anakin Skywalker meet with Rex to discuss the state of battlefronts on Anaxes. Now that Admiral Trench no longer has access to Echo's strategic algorithm, the Republic has an opportunity to retake the planet. "I can improve your chances," Echo says as he enters the command center.

Echo has a plan: While Mace leads a team to retake the assembly complex, the Bad Batch will escort him to Trench's comm vault on a Separatist dreadnaught. Once Echo is plugged in, he can feed Trench strategies. This time, Republic forces will know every move before the Separatist leader makes it.

But not everyone is not fully convinced. Before takeoff, Tech speaks with Rex. "To be blunt, his mind belonged to the Separatists until we unplugged him," Tech says. "We don't really know where his loyalties lie." The clone captain does not take this expression of doubt well. "Yeah, well, I know," he replies. "Now get moving." Once the Republic heroes near the command ship, Echo sends a signal that converts their shuttle-type to a Separatist model. Trench's battle droids give them permission to land.

On Anaxes, Windu leads his men into the assembly complex, only to find a mass of battle droids. He offers them an opportunity to put down their weapons and be reprogrammed in service of the Republic, which is quickly declined in the form of blaster fire. "Well, I guess it was worth a try," Kenobi quips as the battle erupts.

In the com-vault, Echo intercepts a strategy request and sends Trench a command to move all battle droids to the assembly complex. Though Republic troops will be vastly outnumbered, Echo plans to fire a feedback pulse that will shut down the Separatist forces. Tech and Hunter aren't sure of Echo's motivations, but Rex maintains belief in his old friend. "We have to trust him," Rex says.

The remaining battle droids arrive in the assembly complex. Just as they surround the Jedi and clones, Echo sends out the pulse and the droids begin to fall, one by one. Soon, Windu contacts Anakin; they've taken control of the complex, and all battlefronts are falling to the Republic.

This failure shocks Trench, but he resolves to win at any cost. He initiates a bomb countdown at the assembly complex; the weapon is powerful enough to destroy most of the planet. Echo discovers the command and Windu goes to deactivate the device, though ray shields prevent him from accessing the control panel.

Echo reads the deactivation code to Windu, who enters the sequence through the power of the Force. But when the Separatists finally trace the pulse back to the com-vault, they jam the signal before Mace can finish -- and Echo pays the price.

Out of options, Anakin makes a run for the bridge to find Trench. He quickly eliminates the admiral's droid protectors and demands the last entry in the code. Trench refuses, saying Dooku would kill him -- and a Jedi would not. Enraged, Skywalker slices off Trench's cybernetic arms. "I don't have such weaknesses," he growls. "Now, let's try that again."

Trench finally talks, and Anakin relays the final number to Mace. He successfully deactivates the bomb, but Trench makes a surprise strike on Skywalker. In return, the Jedi stabs the admiral through and takes a detonator before departing.

The Bad Batch fight their way through the ship's battle droids, with Wrecker and Crosshair showcasing their own particular styles of combat, and make it back to their shuttle. "I've got a present for you, Wrecker," Anakin says, handing him the detonator. The hulking clone cries a single tear and presses its button; as the Republic heroes soar away, the Separatist fleet explodes.

Back at the Republic base, the Bad Batch make Echo an offer. "Your path is different, like ours," Hunter says. "If you ever feel like you don't fit in with them, find us." Rex tells Echo that if that's where he believes his place is, that's where he belongs. Echo ponders this for a moment, and then walks toward the Bad Batch. Together, they salute Rex, and the captain returns the sign of respect.

Echo gets a new design in this episode featuring the skull-shaped Bad Batch icon, foreshadowing his allegiance to a new team.

The starmap of the Republic command center draws inspiration from similar map designs in Star Wars, notably those seen in the rebel bases on Yavin 4 and Hoth, among others.

The Y-wings of Gold Squadron are seen making a bombing run on the Separatist outpost. Nearly two decades later, a group of rebel bombers flying as Gold Squadron will do the same, only on a different target: the Death Star.

Dating back to the Clone Wars, the Y-wing remains the oldest line of ships in both the Rebel Alliance and Resistance.

Clone trooper CT-5597, better known as Jesse, sports brand-new armor featuring his classic Republic-icon helmet design.

The spider-like Admiral Trench holds a stun-web shooter in one of his cyborg arms.

Upon his death, Admiral Trench lies on his back with his legs curled in, mimicking the death of a real-world spider.

Admiral Trench, like General Grievous and Maul, is a half-cyborg villain that foreshadows Anakin's ultimate fate.

"Here, we have a clone who has been taken away and partially mechanized. And that's a big issue in Star Wars. As fans will know, the more mechanized you become, this implies a lack of humanity, and would also then imply a lack of trust." - Dee Bradley Baker ("Rex" and all clones)

"There's nothing that a clone wants more than to fight alongside his brothers." - Dee Bradley Baker ("Rex" and all clones)

"There's nothing that a clone wants more than to fight alongside his brothers." - Dee Bradley Baker ("Rex" and all clones)

"I think Rex feels a little more of a kindred spirit at the end of the day with [the Bad Batch] than some of the other clones." - Dave Filoni (Executive Producer & Supervising Director)

"I think Rex feels a little more of a kindred spirit at the end of the day with [the Bad Batch] than some of the other clones." - Dave Filoni (Executive Producer & Supervising Director)

"I think Rex feels a little more of a kindred spirit at the end of the day with [the Bad Batch] than some of the other clones." - Dave Filoni (Executive Producer & Supervising Director)

"A really wonderful element of the Bad Batch story of this four-part arc is Rex reconnecting with Echo, Echo reconnecting with his humanity, and then how that story plays out, which is quite emotional. I got choked up at the end of the arc." - Dee Bradley Baker ("Rex" and all clones)

"It becomes a matter of progression for Echo -- that he's elevated to this squad of elite clones, coming from the near-death state that he was at, that he can ascend to this moment, that he's supported by Rex. Hopefully, that's a nice story for people." - Dave Filoni (Executive Producer & Supervising Director)

Anaxes battle hologram by Russell Chong

Anaxes shipyard factory by Pat Presley

Fusion reactor Int. by Chris Glenn

Battle droids by Hyunwoo Lim

Echo by Pat Presley

Echo medical clothes by Andre Kirk

V-wing partially built by Russell Chong

Y-wing by Russell Chong

Echo lighting concept by Jason Boesch

Anaxes attack by Jason Boesch

Mace Windu discovering the bomb lighting concept by Jason Boesch

Explosion lighting concept by Jason Boesch