When returning back down to Earth, after your short visit to the rather underwhelming space station orbiting the planet, you are targeted by a squadron of fighter jets. They do not open fire, but inform you that they are going to escort you to a secret location. You do not fancy your chances against them, as they all seem to be armed with highly advanced missile systems, so you decide to simply cooperate for now. After a few hours, you reach a well-hidden base in central Europe and slowly descend down the hangar pit there.
When you step out of your ship, you are greeted by an officer in a military green jumper and four soldiers in teal body armour. The soldiers carry rather large rifles, which are nonchalantly aimed in your general direction. You eye them cautiously, but the officer doesn't seem to notice. He introduces himself as Central Officer Bradford, and that he belongs to an organization called XCOM.
"Our mission is to deal with extraterrestrial activity.", he says,
"And we have a job for you, if you want it." He goes on to say that they have tracked your ship for several days, and that they have noticed how quick it is.
"We want you to help us react to crises across the globe, by providing air support and quickly getting troops where they are needed. We'll pay you well, and keep your ship in tip-top shape as well. So, what do you say?"
You accept his proposal, but ask that they kindly not aim any more guns at you. He laughs and waves the soldiers away, then invites you to follow him. He explains the details of the job and the facility, you are impressed not more of it is visible from the surface. You also get to meet the leader of the research team and the engineering team, who are very interested with how you got here and your technology. You promise them to give you the data you have on the ship and its weaponry, at which they both light up. After the long day is over, you are given a bed in the barracks. You talk and play cards with the soldiers until late in the evening, and you sleep well that night.