Charles immobilizes the assassin who attacks him in Eileen's home by pinning both his hands down with knives.
Charles wants to take Bruce home but is stopped by May's men. May orders her men to beat Charles up for disrespecting her and to shoot Bruce if he fights back. At one point, the men actually pause to catch their breath. Yes, Charles is such a badass that other people get winded beating him up.
After deciding he's done playing with them, Charles proceeds to utterly demolish them. He also catches the knife May throws at him.
Points have to be given to May for holding her own against Charles and then managing to get Bruce at knifepoint. If not for the bomb the assassins set off, she'd have killed Bruce. And despite being disoriented from the bomb blast, she still manages to take out one assassin before being shot dead.
Eileen keeps Tony Tang distracted so he can't see Charles beating up his men. She also observes how his operation is run as he leads her to his office.
Bruce getting between Charles and June as they are about to fight and deescalating the situation by convincing June that he and his brother were not responsible for May's death.
"Square"
Bruce, Blood Boots and Xing team up with Drowsy Lee to fend off the gang members attacking the Triads.
"The Rolodex"
Eileen deduces that she is the one the mysterious new gang, now revealed to be called the Boxers, are after because of her knowledge of every single Triad boss. She then puts herself out there as bait and when the Boxers capture her, she verbally rips them apart.
Eileen also mentions how she once endured 16 days of police interrogation and gave up nothing. Meanwhile, two of her interrogators ended up in a mental institution.
When Blood Boots mentions that the Boxers won't harm an old lady, Bruce brings Eileen's mahjong group with him to the building they are keeping Eileen. Bruce rescues his mother without throwing a single punch or firing a single bullet.
"Country Boy"
Charles takes on several Korean gangsters to rescue TK.
"Gymkata"
Upon Bruce revealing their names to them in exchange for his family's safety, the Boxers attempt to assassinate the Triad bosses. However, it turns out that Eileen had anticipated that Bruce would divulge this information and warned the bosses ahead of time. The Boxer assassins are eliminated, earning Eilieen some good will among the bosses.
The reveal that Big Sun was faking being in a coma the entire time in order to lure his enemies into a false sense of security. Even when Eileen jabbed a needle in his finger in the previous episode.