2 rounds of
4 x 30 seconds ON / 30 seconds off (alternate between a and b twice before moving to next station).

Try to have a considerable speed on each machine or movements!

1a. Row
1b. Burpee over Box

2a. Echo bike
2b. Alt. DB Snatch

3a. Ski Erg
4b. Wall balls

4a. Bike Erg
4b. Double Unders