Nigel finds signal from Kate three days before telling Lucas. Monitors nexus coordinates. Discovers biosignature match: Kate's consciousness persists in seal.
Kate accepts what she might have to become. Not today. Not soon. But someday. The Hollowing whispers: "You understand now. The door always opens eventually." Kate: "Not for you."
Kate collapses during lunch. Thirty seconds of nothing - eyes open but no one home. When she comes back, she has drawn something on the table. Coordinates. A place in space.
The Fist reveals himself as David Chen, corrupted engineer transformed 200 years ago. Through Rylee's compassion and Lucas's remembered sacrifice, David reclaims humanity and chooses to die freeing the team rather than continuing as a weapon.
Rylee pilots shuttle to escape as organism attempts to hold them via tendrils. Liftoff successful; team enters orbit. Chelsea reveals organism knowledge and memories, but cannot fully interpret them.
Rylee Voss watches from her flagship bridge as Kate Morrison triggers the nexus event that collapses all warp routes, destroys the Dominion fleet, and seals the Hollowing. As the battle turns to victory, Kate's signal fades and disappears.
Kate wakes knowing the truth. She can close the warp routes. All of them. Permanently. But she will not survive it. Not as Kate. Not as human. The Hollowing told her - it was laughing when it did.
Kate abilities strengthen with use. Can now sense ships from further away. Also begins sensing something else - whispers at edge of perception. The Hollowing is aware of her.