Saw Gerrera and his rebels begin to turn against Mon Mothma after a mission goes awry. After being separated from the rest of the crew, Ezra, Sabine, and a reluctant Chopper join Saw's desperate quest to hunt down the Empire's elusive and secret superweapon.
- Ambiguous Situation: Ezra states that his singular kyber crystal sung when he found it, implying that either that's how he found his second kyber crystal or he's been using the kyber crystal he got from "Path of the Jedi" this entire time (where he technically didn't find it; it was given to him).
- Armor-Piercing Question: When Ezra calls Saw on his ruthlessness, he asks Ezra if he wouldn't do the same for his own home, Lothal. Ezra can't find a good answer to that.
- Back for the Dead: Captain Slavin from "Hera's Heroes" returns commanding the Star Destroyer that tries to stop the kyber crystal shipment from getting compromised by the rebels, and is killed when the crystal blows up.
- Bait-and-Switch: Saw decides to let the ship arrive at its destination, hoping to catch a glimpse of the Empire's super weapon. They come out of hyperspace, an ominous shadow looms over the ship... and then it's revealed to be a Star Destroyer, likely the first of many stops.
- Bittersweet Ending: The Ghost crew does get recruits in the form of scientists and techs, so the mission wasn't a complete waste. However, Krennic has already been alerted to Ezra and Sabine's stunt with Gererra, and what he knows may prove to be a serious problem in the future.
- Call-Back: Back in "Breaking Ranks", Hera and Kanan intercepted another giant kyber crystal which went up with a similarly large bang. Kanan even references the event. Like that one, this one was intended for the Death Star, as evidenced by the mention of Krennic.
- Call-Forward: The Jedha system is mentioned and implied to be where the kyber crystal came from.
- Complaining About Rescues They Don't Like: One of the captured scientists is less than impressed with the rescue attempt. Though from his perspective, the rebels' plan seems very haphazard, so his concern is certainly warranted.
- Continuity Nod: Ezra hears the "singing" of the kyber crystal and recalls that his own kyber crystal did the same when he found his. This concept was previously explored in Ahsoka, where it was also first introduced.
- Dark Action Girl: The Death Trooper commander is a woman. You can tell if you're listening to her voice carefully and you hear her voice unfiltered by the comm during her conversation with the captain. See Samus Is a Girl.
- The Dog Bites Back: The kidnapped technicians join the Rebellion to get back at the Empire for their abduction.
- The Extremist Was Right: While the Rebels initially dismiss Saw's fear of the Imperial superweapon as baseless paranoia, more and more evidence keeps piling up until they start to fear he might be right. Of course, we know he is.
- Foregone Conclusion: It's still too early for the Rebels to learn of the Death Star, so Saw's plan of "follow the kyber crystal" naturally doesn't pan out. Even if they destroy it, it only delays operation, as Krennic will just order another one.
- The Ghost: Orson Krennic doesn't make an appearance, but the rebels end up having to fight his men, and they already reported to him what happened.
- Indy Ploy: Especially when the op changes from "infiltration" to "rescue".
- Kidnapped Scientist: The prisoners in the cargo bay are all expert power or reactor technicians who were taken by force when they wouldn't accept the job. Krennic doesn't take no for an answer, as we saw in Rogue One.
- My Significance Sense Is Tingling: Ezra can hear the kyber crystal singing. Sabine ignores him when he tells her the first time, but Saw follows up on it when Ezra has a more concrete idea of where the singing is coming from, leading them to the crystal.
- Mythology Gag: When Ezra and Sabine decide to tag along with Saw, the droid-speak syllables of Chopper's dissenting response sound a lot like "I have a bad feeling about this".
- Not So Different: Saw and Ezra, who were both personally affected by the Empire and dislike the politics in the Rebellion, even if they go about it in very different ways. Despite his dislike for Saw, Ezra seems to at least respect why he does what he does, while Saw respects Ezra for prioritizing saving people above all else, even calling him "my friend" and saying he hopes they'll meet again.
- Oh, Crap!:
- Ezra and Sabine have this reaction the moment they find the room is full of Death Troopers.
- Slavin gives a subdued "Oh, no" when he realizes the kyber crystal is about to explode and take his ship with it.
- Outrun the Fireball: Sabine and Ezra have to outrun the kyber crystal's shockwave in their stolen Imperial transport. Subverted in that Sabine realizes they'll never manage to plot a hyperspace course in time, so she flies behind the Star Destroyer so it will absorb most of the energy. The shockwave still catches them, but only disables the shuttle as opposed to vaporizing it.
- Properly Paranoid: Krennic arranges for the kyber shipments to rendezvous with Star Destroyers in empty space so that they can't be tracked to their final destination.
- Samus Is a Girl: While it's possible to tell the Death Trooper commander is a woman if you're listening carefully, the gender-neutral armor and heavy modulation added to Death Trooper voices makes it difficult until an Imperial navigator calls her "she".
- Shout-Out: Once again, there is another reference to the B-17 bomber when Saw says that the information they're looking for is in Cargo Bay 17.
- Small Steps Hero: What sets Ezra apart from Saw and Mon Mothma, who are both focused on the bigger picture. Ezra just wants to help everyone he can, starting with the prisoners they found in the bay, because as long as he's there and can help he will.
- This Is Gonna Suck: When the kyber crystal explodes, Slavin gives a subdued Oh, Crap! and doesn't even bother to tell his crew to turn around or anything like that, since it's too late.
- The Worf Effect: Death Troopers were established as dangerously competent in Rogue One and in previous episodes of Rebels. Sabine, Ezra, and Saw make mincemeat out of them.
- You Can't Go Home Again: Saw can't return to Onderon and believes that he didn't try hard enough to fight for it.
- You Have Failed Me: Invoked by the Death Trooper commander as neither she nor the freighter's captain want to tell Krennic the Rebels have absconded with the kyber crystal.Death Trooper Commander: We've retaken Hold 6, Captain. The cargo is gone.
Imperial Captain: Gone? Commander, if anything happens to that crystal-
Death Trooper Commander: It's both our heads!