The United States has a military presence in two out of three countries around the world.
A group of rebel states decided to put an end to this by instituting an ultimatum - the Blacklist: a terrible countdown announcing an escalation of terrorist attacks against American interests.
Millions of lives are at stake and only Echelon 4 is capable of stopping them.
Led by Sam Fischer, the best secret agent, this new clandestine unit reports only to the President of the United States.
Above the law and with the most advanced technology, Sam and his team must by all means find the terrorists and stop the countdown before it is too late.
In an extreme situation, extreme measures. In order to stop the countdown of the Blacklist, Sam has the right to kill on mission. But not only.
The only secret agent whose actions go beyond the law, he now uses merciless interrogation methods to extract crucial information in order to avoid the next attack.
Hunting terrorists to the farthest corners of the globe, Sam is engaged in a thrilling race against time to discover who is behind the Blacklist.
Directly mandated by the President of the United States, Sam himself formed the new Echelon 4 unit. His team, his choices.
If Anna "Grim" Grimsdottir is still responsible for the logistics of operations, she is now joined by CIA agent Isaac Briggs, acting as field support, as well as hacker Charlie Cole.
Thanks to the Paladin, a stealth aircraft equipped with the most advanced technologies, Echelon 4 is a highly mobile team that can intervene anywhere on the globe in just a few hours.