25 reps of 50lb goblet squats while partner holds and unweighted squat, switch

25 reps of a sumo deadlift high pull (50lbs) while partner holds a chin up with chin over the bar, switch

25 v-ups while partner holds plank, switch

25 reps of 75lb overhead presses while partner holds a 45lb plate overhead, switch

push a 185lb weight sled 50 meters while partner holds a 20lb medicine ball overhead in squat position, switch

that is one round, do as many rounds as possible in 20 minutes