While attending the wedding of Blaisdell's daughter in a hotel. Peter inadvertently discovers some men with guns. They are there to rob the security boxes. So to make sure Peter doesn't do anything, the leader sends some of his men to the reception to make sure Peter doesn't and that no one goes down. Peter and Caine try to find a way to get to the lower floor.
When The Ancient sets out to commit suicide for the murder of a relative that he was sworn to protect, it is up to Caine to uncover the deception & prove to his friend that he did not break any sacred trust.
Peter and his latest partner, Marty Stramm, are tracking a gun dealer trading dangerously advanced weapons. Stramm is a good cop, but the stress of the job is making him abusive towards his wife, Emily. Kwai-Chang offers Emily support, and her self-esteem is boosted as he starts to teach her kung fu, but Stramm reacts explosively and beats her during an argument. Peter and Stramm succeed in apprehending the gun dealer, but Stramm is horrified when his son, Billy, appears outside the police station with a gun, determined to protect his mother. Kwai-Chang and Peter ...
Tan, the renegade Shaolin Monk who destroyed the temple where Caine lived with Peter which led to them being separated for 15 years, who would become a crime boss whom Caine encountered and defeated some months ago returns. He then sends Caine a message which Caine interprets as a challenge. He then has his man, Chan grab the Ancient. Caine and Peter then go to where Tan is and the challenge begins.
Kwai Chan takes on a new disciple. His new student is already very adept at martial arts, but Kaine hopes to teach him martial arts is more than just fighting. Peter tries to track down illegal street fighting /gambling.
A man with multiple personality disorder kidnaps a school bus and threatens to blow it up. Having dealt with the man before Peter gets on the bus and attempts to diffuse the situation without violence.
A man takes his daughter, who is sick, to Caine to see if he can help her. Caine makes something for her, and for awhile it seems to work but she soon becomes sick. Caine needs more of the main ingredient, a flower which at this time of the year grows in area taken over by a mad vet. Caine manages to find the flower and when confronted by the man, convinces him to let him go but Peter arrives and they have to go, leaving the flowers behind. They return for the flowers but the man has already laid a trap.
Annie Blaisdell asks Caine to accompany her when she goes to meet someone. After meeting him, she's attacked. Blaisdell's upset with Caine. Caine goes to see Annie and gets her to give him a description of the one who attacked her. Along with Peter, they find him and find out why they attacked her.
Peter is shot and Caine has a flashback about the events that happen after Caine decides to stay in Chinatown. Peter and Caine attempt to establish a relationship while fighting off gangsters and crooked cops.
Caine goes undercover to help the DEA find a heroin dealer Chang Lu Ma. After finding him, Chang Lu Ma discovers that Caine is a Shaolin priest. Lu Ma asks Caine to accompany him on his drug deal as a good luck charm.
Karen Kaden is a young woman who is being harassed by a group of men who want her to appear insane. These men constantly threaten her and recently wrecked her apartment. Karen asked the police for help, but she had no evidence. Even her apartment was restored to normal by the time she returned from the police station. No one will believe her except Kung Fu teacher Kwai Chang Caine.
A women trying to escape the life of organized crime becomes a target when she witnesses a murder. The police want to put her into protective custody but she won't testify unless her old teacher Caine is her protector.
A group of armed separatists have been robbing a town dry for years. A old friend of Peter's asks for his help after they kidnap a young girl. Peter and Caine put together a ragtag team to take them down.
Alicia Wright, a student in Kwai Chang Caine's kung fu class, has a problem. Her grandmother, with whom she has lived since the death of her parents, has stopped tending her rose garden, a garden, which was very precious and important to her. Alicia senses that as the garden dies, so does her grandmother. Caine tries to help by taking care of the garden.
The heir to the throne of China is nearing the day of his ascension. Caine asks to have Peter and himself be his protector to restore their family name. Peter befriends the young emperor while running from assassins.