'A Father's Revenge' (1988) aka ‘Das Rattennest'  - John Herzfeld.

Like a great number of the more dutiful denizens of Dennehy county, I humbly consider his exciting 1988 offering from the charismatic, much loved character actor to be one of Dennehy's very best! This pacy, above average revenge thriller has angered patriarch, Paul Hobart (Brian Dennehy) desperately taking the law into his own hands when his only daughter, Karen (Helen Patton) is held hostage by increasingly murderous leftist terrorists in Frankfurt, Germany. Acting alongside the burly Dennehy is a juicy-looking, Joanna Cassidy, an oleaginous, Ron Silver, and, Anthony 'Callan' Valentine is on especially menacing, fleet-fisted form as stilleto cool, ex-SAS operative Vickers. Herzfeld's gritty, pulse-quickening drama 'A Father's Revenge' remains a compelling 80s Euro-thriller!!!! The darker than expected tone, moody cityscapes and sporadic brutality lend an additional gravitas to Herzfeld's gripping, far from humdrum 80s TV Movie! The agreeably synth heavy soundtrack is by notable German film composer, Klaus Doldinger.