Spearhead - Season 3 (1981)

Bilinski's love affair with the lady from Macau has left him open to blackmail by the snakeheads who want him to join their people smuggling racket. When a search party is sent to look for him, his interpreter is found murdered but the man himself has disappeared.

Bilinski is being investigated for possible complicity in people smuggling for the snakeheads in return for favours received, both sexual and financial. Cpl. Box is furious: he should have been going home to England, but he has to replace Bilinski in charge of 6 platoon, which is itself festering with resentment. Pickering is told in the most gentlemanly way to stay away from the woman he was falling for.

It's time to go home. There are debts to be paid off, treasured possessions to be left behind, goodbyes to be said. And futures to think about. Can a black man like Mayhoe get promotion in spite of racism in the British army? Will Box's wife let him re-enlist? What of Bilinski, demoted to store duty? Gilbey's retirement plans? For Pickering, there's a final surprise.