Duncan escorts fuel tankers through the Strait of Hormuz.
What is everyday life like on board the Royal Navy's Type 45 Destroyer HMS Duncan?
A budding female captain takes the helm of HMS Duncan.v
The ship receives orders to evacuate 33 trapped Britons.
The crew have been sent to Ukraine.
HMS Duncan comes to aid a tanker held in Iran.
Series 1 - 2
Series 5 - 6