Petch Tud Petch (2001)

Petch Tud Petch (2001 version) title card.

TV Series (2001)
Thai title: เพชรตัดเพชร
Also known as: Phet Tud Phet / Phet Tad Phet / Cokinos Connection (English title in the title sequence)

Starring:
Jetrin Wattanasin (Chart)
Ummarin Nitiphon (Yod)
Kalyakorn Naksomphob (Rasamee)
Patcharapa Chaichue (Pailu)

Chart and Yod are two hit-men who are equally skilled at their jobs. They work under the supervision of the leader of an underground drug dealing business in Thailand. This makes Chart and Yod compete against one another to become number one. Meanwhile, undercover cops are infiltrating the operation.