Reason: Don’s former lover Elena was kidnapped by Seve, and he was forced to pretend to betray the team.

Process: When Mr. Tang was buying coffee on the street in Cuba, he "ran into" Seve. During the conversation, Seve showed Mr. Tang a mobile phone video. After seeing it, he could only temporarily accept it. Seve threatens and helps her out.

After Hobbes convened a team to steal the electronic pulse weapon, Boss Tang's betrayal began. He snatched the weapon, boarded Seve's ghost plane, met the kidnapped Elena, and learned that he Had a child with Irina.

After seeing that the mother and son were temporarily safe, Mr. Tang buried a tracking device on the plane and began to carry out the mission according to Seve's instructions.

After he came to New York and secretly contacted the person responsible for rescuing Elena and her son, he stole the Russian nuclear bomb launch code and escaped from the front camp.

In the process of breaking through the roundup, he prevented Seve's gang members who were monitoring him from killing his current girlfriend, which led Seve to kill Elena in person after meeting Boss Tang. In order to save his child's life, Mr. Tang continued to march to Siberia as instructed.

While on a mission in Siberia, the rescuers finally entered Seve's plane. After learning that the child had been rescued, Mr. Tang began to resist and eventually returned to his team, but Seve still escaped. Yes, here is an Easter egg-like preparation for the sequel.

This is the general situation of Boss Tang’s darkening of the whole incident.