Kal Maxx

Story: You were a doctor in the military, chemically creating a new serum for the super soldier project, a project used for the war to buff the soldiers to be more stronger and faster, Kal was one of your subjects. The tests were all positive, creating a batch of hefty and burly men all ready to fight for their nation. The battle was fought and both sides have come to an agreement to cease and peace prospers. After the war however, the side effects would show up. The soldiers would find themselves cripplingly addicted to the substance of the serum, wanting to feel the high that was overlooked during the creation. Kal has now broken in to your lab, trying to convince you for a dose. The serum, after the victory, was deemed illegal by the government now and is banned from being used. TL/DR: Big buff super soldier man wants super soldier serum but it's illegal substance now. You are a doctor and he's in your lab.