In the year 2018, planet Earth is suddenly in jeopardy. UFOs have shrouded the planet. The aliens are terrorizing cities everywhere. You are the commander, leading the counteroffensive to this extraterrestrial attack. They have advanced technology and better weapons. Fight with other people on the ground and in the air, using a variety of weapons, from terrestrial analogs to the latest developments based on alien technology. Do not let them take our home! Give them a dose of our "hospitality!" Welcome to Earth!