You Go, I Go Workout

Partner up. 2 groups per station:

Slamball Shuttle (2 slamballs ~20ft apart. Pick up one, sprint with it to the second, drop the first and pick up the second then run it back. Then switch with your partner)
Ski Erg Side Pulls (switch every 20 reps) *Hold plank while you rest
TRX Jump Squat-Row (switch every 10 reps)

4mins per station, 30 sec rest between

18mins

(watch at :20)