Frank Shamrock: Bound by Blood

Shamrock: Bound by Blood, a gripping 65-minute documentary that airs Thursday on Spike (11 p.m. ET), stirs up a few ghosts still haunting the MMA personality. There's a lot of story to tell (Spike producers said they bandied the fighter's 2012 memoirs around the office to begin), but wisely, Shamrock focuses mostly on Frank's deteriorated relationship with his iconic brother Ken. Frank and Ken, a weathered UFC Hall of Famer still trying to ply his trade at age 49, haven't spoken in nearly 15 years. ... For MMA enthusiasts, Shamrock will be an enlightening hour. It also takes a more serious tone than Spike's previous MMA programming. But at its heart, Shamrock is not about MMA. It's about love and hurt, and finding forgiveness and acceptance in the face of dysfunction. For Frank, on his own road of self-improvement, it was about finding peace.

Directed by —, Frank Shamrock: Bound by Blood leans on a strong ensemble — Bas Rutten, Frank Shamrock, Tito Ortiz — to carry a story that balances spectacle with character.

The film landed with audiences for its craft and performances, and remains one of the most talked-about documentary titles of 2013.