Tom Clancy's Splinter Cell Double Agent is about Sam Fisher. He serves as a secret agent in the Third Echelon unit. His latest mission was to infiltrate a terrorist organization and prevent a nuclear explosion. Initially he had a partner. However, due to his own negligence, the guy declassified himself and was shot on the spot. This slightly knocked the hero down. Then he learns about the death of his daughter and finally decides to devote himself to work.

To forget, the agent goes to Ellsworth prison. There he will meet Jamie Washington and gain his trust. Such connections are very important. After all, this prisoner belongs to John Brown's Army. The very group that threatens the world. The plan is simple. We need to organize the criminal's escape. Through complex manipulations, the plan was achieved. This bore fruit and Sam was introduced to the gang leader.

Having achieved the goal, the character will face a difficult choice. The objectives of two organizations may be aimed at opposite things. Moreover, they often contradict the moral principles of the fighter. This forces us to seek a compromise at the risk of being declassified. To track his progress, the player must monitor the progress bars in both companies. They show a level of trust. The NSA's value of 33% is considered critical.

Splinter Cell Double Agent has three endings. The storyline changes direction depending on the decisions made by the hero. The final depends on the degree of completion of the task. Sam must save three objects: the cruise ship, Hisham and Lambert. It will not be possible to protect everyone, so you have to choose.