The mod story does not consider events in Half-Life 2:Episode 1. After explosion of citadel, G-man immerses Gordon Freeman in stasis, but after a while deduces it from there for the new mission. The target of this mission is penetration into a citadel which is in City 18 (the city located near to City 17). In this citadel there is a teleport in Combine world. Using this teleport, it is necessary to get in Combine World and to destroy their leader.