I mean… Come on… Just buy a tank!!

Four sets for max calories/reps of:

90 seconds of Double Unders 

Rest 30 seconds

90 seconds of Burpees

Rest 30 seconds

90 seconds of Rowing (for calories)

Rest 30 seconds

90 seconds of Strict Pull-Ups

Rest 30 seconds

OPTIONAL Hanging Challenge

Accumulate 3 minutes in a static hang (any grip) in as few sets as possible.