Episode 2 is a double feature with Julia Gumpert of Mission 22 followed by the founder of Nous Defions Jeff Perez.

Episode 3: Jonathan Mui

Hosted by 4th Degree Black Belt, 3 x Master World Champion, James "300" Foster. The Spartan Underground features guests from the world of Brazilian Jiu-Jitsu, friends of Professor Foster, and those involved with causes actively seeking out to use BJJ as a vessel to help individuals who are in need within the community that could benefit from all of the positive elements training in Brazilian Jiu-Jitsu provides.