2004, it is the worst of times.
10 months after Chan Wing-yan (Tony LEUNG C.W.)'s murder, Lau
Kin-ming (Andy LAU) faces an internal investigation and is
reassigned to unimportant task. His marriage with his wife Mary is
shattered and he does not even have the chance to see his one year
old daughter. Exhausted, Ming's everyday life seems like hell, but
he still firmly believes that the situation will change.
At this time, a star of tomorrow is on the rise within the police
force. Young officer Yeung Kam-wing (Leon LAI) with one great
service after another and his under 40 age he is headed to the top
of the police force; in Ming's eyes that is who he used to be! On a
chance encounter, Ming and Wing become good friends but discover
Wing's mysterious side. One of HON Sum's spies commits suicide
right in front of Wing. Ming suspects that Wing may be just like
him, an undercover agent for the mob!
As Ming is about to start an investigation, he realizes that a
mysterious handicapped person is following him night an day. From
Sum's spies, Ming discovers that the mystery person is Sum's former
business partner Shum Ching (Chen Daoming), who appears to be
related to Wing. Deciding to turn a new leaf, Ming goes through all
kinds of hardship to find one piece of evidence after another. On
one hand he wants to destroy Ming, on the other he has to prevent
his own identity from being exposed. Unfortunately every time he
gets close, he ends up with nothing. Wing and Ching even force him
into a corner.
After numerous setbacks, gradually Ming feels that Wing is not
suspicious at all and begins to doubt himself......
2001, it is the best of times.
Yan has been with Sum (Eric TSANG) for two years already, but Sum
has never trusted anyone easily and only assigns meaningless jobs
to Yan. In order to gain his trust, Yan betrays himself and breaks
the law time and time again.
As time passes, Sum finally trusts Yan and even assigns him to be a
mysterious Mainland businessman Ching's contact for a Mainland
smuggling network. Unfortunately behind this business, Sum hides
other ideas and causes a rift between Yan and Ching. Yan escapes
death on several occasions and even attracts the attention of
security department's Wing. He finds himself with enemies
everywhere.
His superior Sunperintendent Wong (Anthony WONG) realizes that he
is losing control and tries his best to pull Yan out. Both are
endangered. Yan is gradually losing himself until he meets Dr. Lee
(Kelly CHEN). Because of a severely violating crime, Yan is
sentenced to psychological consulting. Originally Yan plans to
ignore the court order but Dr. Lee who is responsible for this case
refuses to yield. Yan is finally persuaded and accepts
therapy.
During hypnosis therapy, Yan reveals his true identity. Dr. Lee
becomes interest in Yan while doubting him. A relationship between
a clear minded woman and a hypnotized man begins. Sum sends another
order to oppose Ching's smuggling group. Yan knows this is his last
chance to gain Sum's ultimate trust and decides to betray
Superintendent Wong and face Wing's prosecution. Ching's group goes
on the hunt and starts a slaughter ... in the end everything is in
the clear!
As Ming falls into Hell, Yan rises to Heaven. Both cops want to
live their lives anew. The end will put an end to this infernal
era.
i watched liao, seriously speaking, it's
abit confusing but i think i got it all figured out......... let's
discuss when all of you guys watched it~~ 
