Mission: Impossible – Dead Reckoning Part One

A state-of-the-art nuclear weapon has recently been completed and is securely housed aboard the Russian submarine, Sevastopol. This formidable weapon is guarded in a certain place that can only be acccessed through the use of two distinct keys.

During transit, the submarine encounters an attack, leading to its sinking. This event has triggered multiple groups who are eager to locate the sunken vessel and claim the nuclear weapon. The global community is on the edge, that if the weapon falls into the wrong hands, it can cause a significant worldwide threat.

In response, the IMF send Ethan (Tom Cruise) and his team to locate the keys needed to activate the weapon. Ethan's efforts pay off as he successfully gets one of the keys. His quest to find the remaining key, however, becomes more complicated when they are revealed to be in the midst of a trade. Just as Ethan prepares to act, he is outwitted by a skilled thief named Grace (Hayley Atwell), who pickpockets the key from him.

The key now in Grace's possession. She becomes the target of various groups. Fortunately, she crosses paths with Ethan once more and he offers to help. Grace soon joins forces with Ethan's team and becomes a valuable ally in their mission to safeguard the key. They embark on a series of gripping adventures, ranging from high-speed car chases and intense shootouts to defusing bombs on a train, all in a bid to protect themselves and the key.