In the far future, Earth is destroyed by decades of war for resources. The survivors build huge motherships and depart for a journey to the stars, yet the human learn that they are not alone as they encounter the dreadful..
Protect the flora against the invading monsters by building your army of plants. Design your own path with defense units. Juggle the exit gates to confuse the incoming monsters.
Your unit has been deployed at a rural location in Vietnam. Fight the local guerillas to secure the nearby airbase and hold it as long as you can. Be vigilant!