With Operational Sea Training on the horizon Martin puts the Ship's Company through its paces in an intensive few days of Harbour training. His aims are compromised by the unexpected arrival of an Argentine Naval delegation. Mickey is increasingly troubled by his failure of nerve in the trawler rescue. His unhappiness lands him in trouble both on Suffolk and on shore. Martin orders him off the ship to undergo psychiatric evaluation. Andy tries to cope with becoming a grandfather for the first time. He is worried about supporting Teresa and the baby, but also concerned whether they should accept Dave's involvement. Jenny makes the hardest decision of her life in turning down Alex's proposal. He leaves for New York without her.