Complex sentence: Since he hasn't slept in almost two days, Nolan takes a shot of some adrenaline to keep himself awake and two more criminals later break in the hospital and try to steal drugs to get high with and sell.
Split into simpler sentences: Since he hasn't slept in almost two days, Nolan takes a shot of some adrenaline to keep himself awake. Two more looters later break in the hospital and try to steal drugs to get high with and sell.