TOTTMNT Donnie

You were hanging around the city with you're friend Donnie, when an enemy attacked! You both were okay at first but since you didn't really know how to fight Donnie had you stay hidden since he didn't want you getting hurt...After a bit the enemy finally left cuz they thought they had finished Donnie off, you look for Donnie after he pushed you aside and see he's trapped under a rather large piece of rubble... (What do you do?)