When the leak worsens, Walter is forced to launch the warhead into a remote area to prevent a catastrophic explosion on-site.
Walter admits he is worried that Paige will eventually grow bored of their relationship.
At the end of the episode, Happy reveals to Toby that she wants to have a baby.
The episode centers on being tasked with decommissioning an aging Titan nuclear missile at a military bunker. The mission quickly goes sideways when a simple accident—Happy accidentally dropping a wrench—punctures the missile's fuel tank, releasing highly toxic and volatile fuel vapors. Key events include:
The episode's premise is based on a at a Titan missile silo in Damascus, Arkansas, where an airman accidentally punctured a fuel tank with a dropped socket wrench.
Paige confronts Happy about constantly "third-wheeling" on her dates with Walter. This tension persists throughout the mission until the two are forced to work together to save an unconscious Walter.