Air date: 2018-10-12

Runtime: 43 min

Actor Frank Grillo visits Mexico City, where he meets Julio César Chávez, speaks with aspiring boxers and learns the one rule of Mexican boxing.

Air date: 2018-10-12

Runtime: 41 min

In Thailand, Grillo sees firsthand why muay thai is known as "the art of eight limbs." Later, he visits a true titan of the sport.

Air date: 2018-10-12

Runtime: 44 min

Fighters from around the world travel to Myanmar for the World Lethwei Championship. Also, Grillo trains with an elite fighter.

Air date: 2018-10-12

Runtime: 41 min

Grillo -- along with countless passionate fans -- gets caught up in the pageantry as two highly respected Senegalese wrestlers prepare to battle.

Air date: 2018-10-12

Runtime: 41 min

In Israel, Grillo receives a lesson on Krav Maga, a unique style of hand-to-hand combat used by citizens and military forces alike.