Prepare for the Overwatch 2 Invasion. Null Sector’s forces are attacking Rio, Gothenburg, and Toronto. Answer the call, heroes. Defend the world in Overwatch 2 Invasion Story Missions on August 10th. Prepare for the Overwatch 2 Invasion. Null Sector’s forces are attacking Rio, Gothenburg, and Toronto. Answer the call, heroes. Defend the world in Overwatch 2 Invasion Story Missions on August 10th.