Nuclear Strike is a helicopter-based game, with strategy elements added to the action gameplay. The plot concerns an elite special force - the player's allies - pursuing a nuclear-armed rogue spy through a fictionalised Asian setting. It retained the earlier game's engine but added several modifications to improve graphical performance and make the game more accessible. The game features 15 playable vehicles, a large increase from previous games. In addition to the main fictionalised Apache, there are secondary helicopters, jets, armour and a hovercraft. The player also commands ground troops in occasional real-time strategy sections.
The idea behind the episode came from an earlier series three episode about a series of Russian weapons caches throughout the United Kingdom set up during the Cold War. Cross also felt it gratifying to kill off Connie, a character he created in the sixth series. Filming took place during the summer of 2008, with much of it taking place in disused tunnels of the London Underground. The series seven finale was seen by six million viewers and a quarter of the television audience, a large increase of 900,000 viewers and four share points from the previous week. Critics reacted to the episode with near universal acclaim, for being a "superb season closer," "exciting" and "thrilling."