The men find themselves assigned to a 'hot shot' sergeant with a mission to destroy an enemy bridge. Tempers reach a breaking point when Anderson finds a living Vietnamese child and the sergeant wants the child Killed.

One of a GI's big events is the arrival of his mail. When Zeke opens his mail to find that his ex-wife, it is to find that she is complaining that he is not writing letters home often enough to their 3-year-old daughter. Zeke already has enough responsibilities... this one isn't wanted. However he has little time to worry about it before he finds himself out on patrol. Goldman orders the squad forward when Anderson warns that they are walking into trouble, Anderson scouts out ahead and ends up in a near-lethal mortar barrage. Anderson is nearing his limit when he finds out that the squad's next destination is a valley where Zeke's last outfit was nearly wiped out. Anderson fights going tooth-and-nail and it is obvious to everyone that Zeke is falling apart. There is little time to help him, though, as the men have to consider their mission first. The squad ends up going after a downed flyer... and while Zeke continues to deteroriate.

Alex sets out to expose a major whose questionable judgement has caused casualties.

Alex risks her life by investigating a prostitute's murder in which Taylor is implicated.

While out on patrol, the unit stumbles across CIA recruiter Jim Doyle. He has taken possession of a case of Russian-made sniper rifles, and claims that finding him there was an accident. It is obvious that Goldman and his men have been used by Doyle to provide himself with an escort out of the bush. They get ambushed on the way out. They get most of the rifles back, but Zeke and Myron wonder why they were ambushed by Montagnards, a group known for their loyalty to Americans. Goldman decides to investigate Doyle and enlists Alex's help. Doyle learns he is being investigated and leans on Zeke to get the lieutenant to stop. McKay tries to convince Goldman that he should take a non-combat job ""for Alex's sake"". Taylor is upset because a soldier named Smith gets his sergeant's stripes before Johnson gets them, and Taylor think race has something to do with it.

Utter havoc reigns in the jungle after a newby makes a mistake and two other soldiers are killed going to his resuce. The men are led by Lt. Beller, and his unit has seen far too much action and too much death. Beller is an old friend of Goldman's, together they are sent back out to search for an NVA regiment. Beller tells command that his men need rest or they are going to snap but Brewster insists they must go out. Meanwhile everyone is happy to see Anderson return, except for the ever-depressed Percell. Goldman spends some time with Beller. Percell is going over the edge fast and no one knows that he has started to use drugs. Anderson discovers that Brewster is married to a Vietnamese girl and they have a child. The next day, on their mission, Percell (drugged up) starts to panic. Beller's unit creates a My Lai-type of massacre in the field and that sends Percell off the deep end and straight into the waiting arms of heroin dealers.