how's it going? this is my dad. - this your dad? - yeah. all right, fella, here we go. (paramedics chattering) are you here for a steven lui? we just need an ambulance to transport him to kaiser. - [paramedic] what difference did you see in him that made you call? - [richard] so his breath rate, basically. - okay. - 36 breaths per minute. it's pretty consistent. - okay. - [richard] having watched him for the last six years, this is distress. heart rate 140, 150. we've had scares like this so many times. and the injury to you doubles and triples and it's a fact. - [paramedic] worried about your breathing. - [richard] each time, we have to be his voice. what's up, buddy? (richard speaks indistinctly) - [paramedic] you're fighting hard. you got some fight in you. - [kristen] everything you can do, you do. our dad, that fighter, he hasn't given up.