S2·E4 Tide

In the episode, Æon and her red-clad companion are descending from the high floor of a sea base carrying a key. As the two enter a lift, they are attacked by Trevor who is easily knocked out by Æon but not before he pushes all the lift's buttons at once sending the lift down through all the levels. She handcuffs him but drops the floor number attached to the key leaving her no choice but to go down level by level searching for the locker that the key opens. On each floor, Æon shoots up the stairwell to keep a pursuing Breen soldier at bay then tests the key on that floor's locker and finally shoots a distant sky hook that is attempting to latch on to the railing of a small, distant, water level platform. Each time Æon exits the lift, Trevor and the red-clothed agent make love with the agent springing back to either guard Trevor or try to retrieve the number. Æon begins to suspect ...