This is where it ends. R Cell speeds across the Montana countryside, racing against time to catch the infected Benthic employees. McCastlin cannot be allowed to do whatever he has planned. So R Cell drives through the night toward Devils Tower, the stone monolith known in indigenous traditions as “Ghost Mountain.”

R Cell knows their quarry has fled toward Devils Tower, but there’s cleanup to be done at Benthic Pharmaceutical first. The trail of destruction and infection leads deeper into the underground complex. And they have to take out whatever Unnatural horror may lurk down there.

The sample has been destroyed, but R Cell's mission isn’t complete. The team tends to their wounds and gears up before heading to Benthic headquarters in an attempt to track down the last loose threads. But something there is amiss, and R Cell will have to decide how to handle the unsettling consequences.

Their timeline escalated by the phone call from EPA Agent Gaylor, R Cell races for the Oakland Pit. There they find that Benthic has deployed black-ops agents to move their “proprietary organism” from the toxic waters. Can R Cell defuse the situation with diplomacy? Or will they be forced into a more lethal course of action?

After some much-needed sleep, R Cell faces two loose ends: The Benthic Corporation and Detective Eric Hayes. All clues seem to point toward Benthic, but Hayes knows more than he’s telling about Deputy Fred Jacob’s death and autopsy. Fortunately the detective is very easy to find, and he has some questions of his own for R Cell.

R Cell must make an impossible decision. What should they do about Christina Jacob and her Star-Child? Can they be saved? And can this contamination be contained? Whatever they decide, there will be consequences that must be faced. And the clock is ticking.

CW: Child Violence

R Cell has split the party. Rooster and Rowan are at the Jacob residence, but they found an open door and a missing woman (and star-child). Meanwhile Rory and River are planning to pay Laura Ghant a visit, intent on discovering her connection to the Oakland Pit. Will the enigmatic CEO of the Benthic Corporation give them any information? Will the team be able to catch Christina and the baby before they get…somewhere?

After the disturbing events at the Green Box, R Cell returns to town for much needed food and answers. What are these Mi-Go? What about Operation Mirage? And how do they all relate to what’s happening in Helena, Montana? Castle owes the team some answers, and he has some bombshells about the nature of their mission and Delta Green itself.

“The acid may have been a mistake,” River says, shivering from the horror of what he saw inside the Green Box. Something is going very wrong with the body they stole and the Agents of R Cell will have to handle this new Unnatural complication. What is actually going on inside that barrel? And is this something they can handle or are they already in over their heads?

(CW: Gunshots at 38 minutes in)

With the Green Box no longer secure, the Agents split up for the night to keep watch over the equipment and body hidden inside. Who tried to break into the Green Box, and will they return? What will R Cell do with the body if they’re not able to keep it secure for A Cell’s retrieval?