After dumping his girlfriend solicitor Harry Venn is approached by high-powered advocate Gina Hawkes to find Joe Collins,who she claims can prove the innocence of her client,murder suspect Stevie Quirke. Venn is reluctant,especially since Gina and her firm do not appear to exist on paper but is intrigued when Quirke claims to have news of Venn's brother Mark,apparently killed in a police shoot-out years earlier. Leaving the prison Venn is surprised to see Paul Hillman,a policeman whom he also thought was dead. Next day he survives a bomb blast at his office. Meanwhile Opposition Leader Alexander Wentworth goes on television to attack PM Brian Worsley,whose supposed corruption and bribery have caused nation-wide riots.