Berserker is an episode from series 14 that first aired on 1 January 1998.
Illegal body building drugs combined with mind bending additives cause a series of deaths around the muscle scene of Glasgow. In a race against time to find the source of the deadly drug the Maryhill team call on the help of a famous chemistry professor at the University. But is he helping or is he the source of the drug? Jardine, Reid and Fraser investigate.