The outbreak of a revolution interferes with the planned rescue of three Americans from a Third World Country.

The Doctor's trial continues. The Valeyard's next piece of evidence for the prosecution concerns the Doctor's recent trip to Thoros Beta. Though originally investigating arms dealing, the Doctor and Peri become embroiled in their old enemy Sil's alarming neurological experiments...

Charlie fine tunes his car, ready for Duffy, who is due to take her driving test at the end of shift. Two taxi drivers, Ken and Les, are both brought in, after ammonia is thrown in their faces by a crazed woman, in separate attacks. Their eyes are irrigated, but Megan is worried about the safety of husband, Ted, who is also a taxi driver. She tries to call him, as does the taxi control office woman, Cheryl, who puts out a warning over the radio, but Ted has his turned off. Outside the cinema, the same woman gets into Ted's cab - he avoids the attack, and talks to the woman for over an hour, he feels sorry for her. The police are then called to take her away, Ted makes a statement. When he collects Megan from work, he is thinking of retiring. Megan tells him she has cancer, and what her hysterectomy will mean for them. Duffy's nurse friend, Trish, is moonlighting part-time at a pub. A regular, Tom, gives her a lift home, as she gets out of the car, Tom attempts to sexually assault her, during the struggle her fingers are trapped in the car door. She demands him to take her to hospital, where Duffy treats her painful injuries. Duffy says she should report it, but she says she will lose her job and she needs the money. She says she is leaving nursing as she wants a higher paid job - Duffy questions her on job satisfaction or more money.