Conclusion of this two-part story. The duo try to uncover the truth behind Terry Nash - the well-intentioned gun-man out to avenge the murder of his wife and who, until recently, didn't seem to even exist - but in doing so, they are framed and wind up suspended from duty and becoming fugitives. Determined to unlock the secrets about Terry and to clear their names, the twisted trail of their investigations leads to a complex operation in which innocent victims are brain-washed into murdering those that they believe to be their enemies. But with the investigations getting too close to home, the masterminds behind the brain-washing set-up have new murder victims in their sights - Starsky and Hutch...