A boxing match between a flashy reigning champion and a local boxer turns into a brawl instead. The brother of the local boxer is found murdered later and the prime suspect is the Haynes reigning champion. It becomes evident that this was more than Haynes making threats to his opponent and his family. The Five-0 team discover that Gabriel Waincroft is behind it with more to come at the next boxing match. Steve's interrogation of one of Gabriel's associates on a jet ski was certainly different.

It's a race against time for them to save the next victim or victims in the dimly lit arena. As one of the victims is being taken to the hospital in an ambulance, it is ambushed by Gabriel. The team does manage to take down everyone else. Abby and Chin were sure happy to see the other one was safe after all the gunfire that went down. Nakano won the match in his brother's memory, while all of this was going down around them.

Adam goes to court to be sentenced. He took the lowest offer of 18 months. He didn't want to take the chance of going to trial and being sentenced to 5 years or more. Kono drops him off at the jail for him to surrender and he tells her the sweet story of his grandparents who were married for 60 years. She tearfully vows to wait for him so they can finally start their life together. He gives her his wedding ring and tells her that the next time she puts it on his finger, all this will behind them. Then he is escorted inside, just the team starts to arrive to offer their support.