Clip Show: The episode is essentially this, with Alex and Trivette flashing back over their times with Walker—and he doing likewise about them—while awaiting his rescue.
Deadly Game: The episode's villain, Caleb Hooks (an escaped convict who is out for revenge on Walker) forces Walker to play a series of cryptic games to locate Alex and Trivette, throwing him off the trail each time. Walker is able to stay on the trail every time, however, and outsmarts Hooks in the end.
Drowning Pit: Alex and Trivette are locked in a large water tank that slowly fills with water.
Flashback: As Walker is attempting to locate his friends, he reflects on his relationship with Alex, memories unfolding in his mind and illustrated through flashbacks to previous episodes.
When the mooks show up at CD's Place to kidnap CD (and also place him in the tank) ... but Walker happens to be in the back, hears the disturbance and runs the bad guys off.
The stock ending of Walker showing up just as the tank has become completely full and Alex and Trivette are now submerged and desperately trying to survive.
