Knocked Down, But Not Out

Knocked Down, But Not Out

Available on Investigation Discovery, Food Network, Science Channel, Discovery, TLC, Travel Channel, HGTV, Prime Video, discovery+, Sling TV, Animal Planet, AHC GO, Destination America GO, Discovery Life GO, Cooking Channel
S1 E4: Glenn teams up with Tae Bo inventor Billy Blanks to transform a struggling karate studio into a full-fledged fitness empire, but to do it, owner Brian Arrington has to turn his part-time side project into a full-time second career.