out of here and little bbs here and there. but i was fortunate. reporter: every day, three hours a day, the brothers do acute rehabilitation, relearning the basics like folding clothes. didn t do laundry at home, shouldn t do it here. reporter: humor helps. paul often has a smile that encourages j.p. seemingly simple tasks such as getting up and down are now a challenge for him. is it getting up or getting down that seems to be a challenge? [ inaudible ] the bending, getting up or getting down. both are pretty hard. reporter: paul s left leg not as badly damaged as his brothers so he s ready for an obstacle course and more upper body exercises. how did this feel, this part of it? it was the first time i did it. i m exhausted. reporter: compared to how you see him now, versus how he was when he first came to you, how is he? there s a huge difference. yeah. when he first came, he was still