1. Mysterious Signal

Win received a radio signal from a police officer named Yodchai, reporting the discovery of the body of a suspect in a murder case from 20 years ago. This prompted the investigation team to reopen the case, which is set to expire within 24 hours.

2. Justice Has an Expiration Date

The hunt for the real culprit who murdered young Noina has begun. Lieutenant Win and Inspector Risa must track down the killer before the case reaches its statute of limitations in 24 hours.

4. Yotchai's Lover

Captain Yodchai is imprisoned, and Win informs him that there will be another murder victim-Ruedee, Yodchai's beloved. This forces Yodchai to find a way to escape from his cell and save the woman he loves in time.

5. We Are in Different Times

After Yodchai failed to save his beloved, and after Win closed the Paet Riu case, Win tried to find Yodchai-only to realize that their communication through the radio was taking place in different timelines.

6. Time-Cross Investigation

Yodchai lost contact with Win for six years, while for Win it had only been a week. Yodchai was working on the Manun Prosecutor's house case, and thus he and Win began another cross-time investigation.

7. If We Could Change the Past

Udom, the burglar, sought revenge on the one who caused his daughter's death, but his plan went wrong, and Risa was killed in the explosion instead.

8. We Shouldn't Contact Each Other

Inspector Risa came back to life, but Win no longer wanted to communicate with Yodchai, fearing that if the past changed, the present would face another loss. Meanwhile, the Black Case Team began a new investigation.

9. The Insider

The return of the woman who had already died was connected to Rome, Prosecutor Manun's son, and to evidence of corruption involving the Sinthawee Bridge. Meanwhile, the Black Case Team was being threatened by dark influences.

10. The Red Bag Killer

Win and Yodchai communicated through the radio once again, as Yodchai began investigating a serial killer who suffocated victims by covering their heads with a bag and tightening it until they died.

11. Memories

In the past, Risa was abducted by the killer but managed to escape. She then volunteered to undergo hypnosis to recover her memories once again, to find clues to the killer who was still at large.

12. My Heavy Wings

Risa's recovered memories led her to walk along the streets he once ran through in the past. She eventually arrived at the murderer's house, where she discovered crucial evidence and the final victim.

13. A Message from the Lake

Win pleaded with Yodchai to help with the student gang rape case at Panyatawee School, which was the last case written on Yodchai's note. The case was under the supervision of Inspector Komdech.

14. Going Home, Son

Yodchai began investigating the case, and many things seemed to have been staged. Still, he was determined to fight for justice for Wat, Win's older brother.

15. The Truth About Rada

Win asked Yodchai to stop working on the case, fearing that Yodchai might be in danger. Yodchai insisted on continuing the fight for justice, while Win became a suspect in the murder of Deputy Pakdee.

16. The Voice of Yotchai

Wat wanted to give Yodchai the evidence that would prove his innocence in the gang rape case. Deputy Pakdee, who was supposed to provide crucial evidence to Win, was killed to silence him.

17. The Wait

Wat was killed to keep him quiet, and Win became a suspect in Deputy Pakdee's murder. Risa heard a mysterious radio transmission and provided clues about the case, while also needing to track down Chati, the key culprit.

18. The Promise

In the present world, Win was shot. In the parallel world, Yodchai captured the key culprit, Commissioner Komdech. When Win regained consciousness, he found that current events had changed, and he began searching for Yodchai once again.

19. Episode 19

No synopsis available.

20. Episode 20

No synopsis available.

21. Episode 21

No synopsis available.

22. Episode 22

No synopsis available.