S1 • E1
An agent who has been working undercover to gain the trust of a criminal organization finishes his mission, and is then placed into a new job with the police.
S1 • E2
Laughing trains new recruits for the Criminal Intelligence Bureau, while putting them all at risk.
S1 • E3
Jodie continues her surveillance on Laughing's home. Meanwhile, Laughing wants Michael to break into Four Happiness Finance Ltd.
S1 • E4
Laughing is suspected of turning rogue.
S1 • E5
The trainees' final test is to investigate Laughing's case.
S1 • E6
CIB's new mission is to infiltrate Yee Fung's prostitution ring. Mung is forced to face her past when she is asked to go undercover.
S1 • E7
Laughing helps Michael to climb the ranks in exchange for intelligence.
S1 • E8
Yuen Kwan Nam is released from prison after being betrayed by Kung Sir 20 years ago.
S1 • E9
The police are ready to bring down Yee Fung in one go with Operation Shadow Hunting, but Micheal has a plan of his own.
S1 • E10
The big boss of Yee Fung returns to Hong Kong and is ready to launch a new business.
S1 • E11
Gangsters within Yee Fung compete to take over Willy's business in drugs.
S1 • E12
Mok Yat Lit appoints Spicy Ginger and Michael to run Willy's drug business.
S1 • E13
While undercover, Laughing and Jodie discovers one of their agents Kit has a twin brother who is involved in Yee Fung.
S1 • E14
CIB uses the twin agent as undercover to bust Michael's drug operation.
S1 • E15
Laughing turns in his badge after an operation goes wrong leaving an agent severely injured.
S1 • E16
Michael goes on trial. CIB sends another undercover agent to infiltrate Yee Fung.
S1 • E17
Laughing works with Michael to gain new terriory in Old Kiln Slope.
S1 • E18
Lap Ching is convinced Laughing has not gone rogue and decides to follow Laughing in secret to prove it.
S1 • E19
Jodie insists staying strictly business with Laughing, while Mung confess her feelings to Dog Head.
S1 • E20
Pissed that Laughing is moving up the ranks quickly at Yee Fung, Spicy Ginger make his move to get rid of his competition.
S1 • E21
Laughing gets intel from Mok Yat Lit's mistress to catch him red-handed.
S1 • E22
Mok Yat Lit escapes with help of a mole inside CIB.
S1 • E23
With Mok Yat Lit wanted by the cops, Yee Fung moves up election date for new Chief. Michael makes his move to be elected the new chief.
S1 • E24
T-Two seeks revenge as Dog Head struggles with the choices he has made.
S1 • E25
Fierce competition inside Yee Fung for the new chief position, Laughing and Michael pull out their ace cards to out the other.
S1 • E26
Michael plans to expand Yee Fung internationally by joining Ether Union.
S1 • E27
The police discovers Michael's cocaine supplier is connected to a beauty products company where Kwan Nam happens to work.
S1 • E28
With Michael's help, Spicy Ginger escapes from prison. The police are closer to finding out about Ether Union, but information about undercovers may have been compromised.
S1 • E29
The police busts Ether Union's drug trafficking operation. Spicy Ginger is out for revenge.
S1 • E30
Laughing finds himself back in court again for the last time.
S1 • E31
Madam Jo
Michael So
Laughing
Harry Kung
Tang Kwok-ban
Yeung Lap-ching
Yuen Kwan-lam