After the events of the Halcyon Tower mission, Seeker has a loose end to clean up: collect the debt from Omega. She returns to the building to poke around in hopes that there's still some reality tears she can slip through into the hell dimension. Midas confronts her and tells her that they have everything handled. She flies away from him and runs into Cosmica and a portal remnant. Seeker manages to talk Cosmica into letting her through the portal. Midas follows briefly, but is freaked out by the hell dimension and quickly leaves.
Surveying the area, Seeker spots a procession of demon-like creatures in the distance and heads that direction.
Eventually the procession leads her to a ziggurat, where she is granted audience with Omega, seated upon a throne. Omega has grown partially scaly on the side of his stabbed-out eye, and at his side is a heavily pregnant draconic woman.
Omega presents Seeker with an obsidian box, inside which is a fresh (magically preserved) human head. He assures Seeker that this is the payment that was agreed upon. Seeker warns him that if it's not, she'll be back. She takes the box and flies back towards the portal.
Meanwhile, back in reality, several members of the Riot Pack awaken in the morning, a Friday.
While Marren is in the shower. the Trans-dimensional Witch appears in his bathroom. Ignoring the awkward staging, the Witch shows Marren a vision of a man called Magus Everard and says that she needs to know when/if Everard appears in this world, implying that she's not sure Seeker will tell her. Marren agrees to contact her if he sees Everard. She gives Marren a small mouse creature to contact her through, warning him not to let Seeker or her cat-creature see it.
AM, suspicious of Uncle Bob's intentions, is heading to base when he spies Bob in a back alley talking to Tegan Queen. Bob gives Tegan something before leaving. Tegan spots AM and confronts him, pushing him against the wall. She tells him that she has an arrangement with Bob and not to interfere with it.
Hanna and Marren arrive at the base, Hanna to do homework before school. Tegan teleports through AM before they arrive. AM tells them about seeing Bob and Tegan, describing Tegan. He notices that Hanna recognizes her description but she doesn't elaborate.
The three of them head inside to find Uncle Bob at a computer, on the tail end of a call directing someone to Coronado. AM tries to question Bob but gets nothing. Bob suspiciously shuffles some papers out of sight. Hanna signals to AM to talk later. Bob leaves, taking the documents with him. AM checks the camera system to find that not only were Bob and Tegan talking in a blind spot, but the few minutes of footage where Tegan confronted AM have been removed entirely. AM downloads the villain database and starts searching Tegan's description.
On the way to school, Hanna confides to AM that she knows who Tegan is. She suggests that Tegan might be feeding AEGIS information. Their discussion is interrupted by Jeff the Freshman, who is very excited because he got his hands on some weed. It's not very good but Hanna decides to hang out and smoke a bit anyway before school starts. AM joins them.
Marren arrives at school on his own and is approached by two kids in his ROTC program. They want him to join them for something after-school. It sounds a little shady, but they're good kids and seem earnest so Marren agrees.
Later, around lunchtime, Seeker returns to this dimension through a portal remnant barely big enough to still fit through, and brings the box to base. Outside the base she encounters Magus Everard. Although she's supposed to tell the Witch of his presence, she owes Everard and considers him a father figure. She conspicuously ignores him. He asks her to give him the obsidian box, telling her that he needs it for 'proof'. He explains that the head is of the previous Witch. Seeker refuses to hand it over. Everard accepts her decision but leaves her with a warning.
AM intercepts a call to AEGIS headquarters from an 'Agent Yellow' requesting emergency extraction. Agent Yellow realizes she's gotten one of the junior agents from the Sirius Program but still tells him where she is. In the background, another voice (her partner) calls her Cassidy and tells her not to reveal anything else, then the call ends. AM calls Hanna, Marren, and Sophia to tell them. Marren recognizes Cassidy, knows her not only as an agent but as a friend, and is ready to go immediately. AM and Hanna jump into his car while Seeker stows the box at base and flies to meet them.
The coordinates in Coronado take them onto a military base swarming with helicopters. Cobalt shows his ID and is let through. Seeing SWAT vehicles heading for a bunker, Cobalt guns it to arrive ahead of them. The AEGIS phones ring, AM is the only one to answer. Bob demands to know what they're doing. AM explains that they're answering a distress call while he melts open the bunker door.
Cobalt rushes in, Cadet on his heels, while Seeker and AM stay behind to close up the door so SWAT doesn't pile in immediately.
Cobalt and Cadet pass by an unconscious, possibly dead guard. Cobalt enters the next room and a wire wraps around his neck, lifting him off the ground and strangling him. Cadet snaps the wire to free him.
The room they're in is full of flight suits, similar to what Vandal wears under his armor. In the next connected room are a series of mechsuits. The latest suit is gone, with a hole broken through the ceiling above it and hastily patched. Also in the room is Cassidy's partner, an arrow through his neck, while Cassidy herself is unconscious and sealed into one of the mechsuit capsules. Cobalt and Cadet go to free Cassidy. Seeker and AM join them, Seeker going to help while AM focuses on finding a way out. AM decides to freeze the metal cover on the hole and shatter it.
An arrow flies towards the three gathered heroes and explodes, catching Cobalt and Cadet off-guard but barely phasing Seeker. Carlo the Assassin appears and demands to know where 'it' is. At Seeker's clear bafflement, Carlo presents plans for a mechsuit with integrated magical runes, similar to those Seeker and AM are both familiar with.
Cadet distracts Carlo with a steel cable, which he dodges directly into an icy punch from AM. AM takes his bow. Carlo recovers enough to smugly block a strike from Cobalt, only for Seeker to twist his arm and lock his hands together with a forcefield.
SWAT team members shout down through the hole AM opened, pointing weapons and ordering the team to stand down. After a tense moment, Uncle Bob appears. He shakes his head and orders the SWAT team back before going to confront the Riot Pack himself. In the meantime, Cobalt frees Cassidy.
Uncle Bob demands to know what the hell Cobalt thought he was doing. Cobalt defends his decision and AM backs him up, citing AEGIS rules about emergency response. Bob is still unhappy. He takes command of Carlo — Seeker only gives him over at Cobalt's order. Seeker attempts to comfort Cobalt with an offhanded comment, but it doesn't help.
Cobalt talks to Cassidy as she comes to, trying to find out what happened. Her account is unclear.
By the time everything's been dealt with, school is almost over. Everyone goes back to the base for a bit, but Marren doesn't stick around since he has that ROTC meeting. AM notices the obsidian box and annoys Sophia by asking to have it. Sophia refuses and sends the box and head along to the Witch.
Marren meets his two ROTC friends and their… teacher? Mr Hicks. Mr Hicks says that the three of them are the most promising students in the ROTC program and shows them recruitment material for something called ANTAG, including a video with Gold Raven. Marren, annoyed with AEGIS after getting yelled at yet again for following his instincts, decides to go along with the ANTAG recruitment to gather intel.
Meanwhile, Hanna, AM, and Sophia have procured alcohol and gone to hang out in a cemetery, because that sounded like a good idea for some reason. AM waits until Sophia's gotten pretty plastered before asking Hanna, confidentially, about their earlier conversion — and how exactly she knows Bloody Mary.