Whilst taking part in an infantry exercise, the company's armoured personnel carrier is forced off the road. Jeremy Forsythe struggles to introduce his fiancé to the regiment. Cate Hobbs receives bad news when she goes for a pregnancy test.

B Company is ambushed whilst transporting arms to Aldershot and the police suspect it is an inside job. Jeremy Forsythe receives some bad news regarding Lillian.

After the regiment has moved to Aldershot, B Company train for the parachute regiment and not all pass. Back at home, Deborah Briggs meets Jackie Reece whose life is spinning out of control after a personal tragedy.

Mark and Cate's new baby becomes ill and the extent of their actions becomes apparent and Cate finally finds out that she's pregnant. Andy Butcher helps the company to win a coveted trophy after intervening during an accident.

Cutbacks to the armed forces budget causes an exercise to go disastrously wrong. The debt collectors catch up with Deborah Briggs and she is forced to take desperate measures to earn money.

The discovery of a World War Two bomb puts the wives lives at risk and Cate has an early delivery. Meanwhile the men are guarding a historic site against Druids.

Chris McLeod faces some tough decisions when an old girlfriend from Northern Ireland turns up unannounced. Jeremy Forsythe and Sarah Eastwood get better acquainted and the wives take part in a parachute jump to raise money for charity.

As preparations are underway for Andy and Stacey's wedding, the groom almost gets stuck in France. Other members of the regiment have unfinished business in their personal lives to sort out.