Nations United: United Nations Fight for Humanity

In the not-too-distant future, the world teeters on the brink of collapse, ravaged by economic turmoil, endless drought, climate change, and war. One world leader, desperate for a solution, invites the UN Assembly to a private meeting offshore. It's there that all of the world's leaders discover the Earth will be infiltrated by aliens, and only they can stop it. It's a fight to the death to keep humanity from going extinct.