Ex Polaris submarine captain Edward Holt is in command of HMS Hero currently on duty in the Hong Kong area. In this episode he welcomes aboard his new first officer James Napier who has just flown into Hong Kong to meet the ship. There is local unrest about nuclear testing in the pacific area mainly voiced by Chris Panmuir. A press conference given on board ship by Mr Thomas Meryon MP leads to a challenge being thrown down by outspoken freelance journalist Zoe Carter and a 'protest cruise' in Panmuir's yacht Windsong being undertaken just as a test is about to start.