Hollowed Earth

With the rise of industrialization life as we know it ceased to exist. In the year 2236, Earth was officially abandoned. Those that could afford it, took to the new moon colony of Concordia and left what was left of humanity behind to suffocate. 2240 The last recorded plant died in captivity... Or so we thought. New readings have found one remaining tree still alive back on earth, your mission is to collect it and bring it back so it can be preserved and maybe... Just maybe... The Earth can be saved.