Robin of Sherwood (1984)

Season 3: Episode 4

An old man and his beautiful daughter live alone in the ancient castle of Caerleon. They are about to be attacked by a horde of brigands led to the castle by a former employee of the old man's. This traitor knows there is a priceless treasure in the castle, but never found out exactly what it was. The daughter seeks out Robin Hood to defend her, her father and the treasure that is beyond price. Robin must ultimately make a staggering choice of loyalty.