Teenage recruit Harland battles homesickness. Craig, who's 32, is determined to provide for his young family, and sees the Navy as his last chance to make something of himself.
Recruit Dackombe faces a difficult choice when his girlfriend falls pregnant as he's due to start Navy training. And messdeck high jinks get out of hand at HMS Raleigh.
As training continues, a dormitory prank gets out of hand, threatening teenage recruit Dunbar's future in the Navy.
As the recruits enter the fifth week of their training, two are pushed to their limits and struggle to keep their heads above water.
The young women of Cornwell Division take on HMS Raleigh's most notorious physical test, the Stretcher Run.
In this episode, a gruelling 20km trek casts doubts over whether recruit McGregor can complete training.
A gruelling 20km trek across Dartmoor casts serious doubts over whether recruit McGregor will make it through training.