While investigating a missing person, Allen's team stumbles upon some puzzling clues. The clues seemed to be related to time travel and surprised the whole team. They begin to track down the missing in an attempt to uncover the secrets behind this paranormal phenomenon.

The cause of the case was the sudden disappearance of a young man named Danny. After Danny's family didn't see him home all night, they began to feel upset and reported the incident to the police. The police handed over the case to Allen's team.

During the investigation, Alan discovers that Danny's disappearance is linked to an old manor. In a secret room within the manor, they discover a complex machine whose structure and design appear to be related to time travel. However, the team was baffled by the discovery as they had never been exposed to a case related to time travel.

During the investigation, Alan's mood became heavier and heavier. He begins to doubt his abilities and fears that he will not be able to solve the mystery. At this point, Sierra reminds Eren to trust his instincts and move forward. Alan thanked Sierra for her encouragement and picked herself up again.

As the investigation progresses, the team discovers that Danny had spent some time in the manor's vault before his disappearance. By consulting Danny's diary, Alan discovers that Danny has developed a keen interest in time travel and is trying to travel back in time through this mysterious machine. They begin to suspect that Danny's disappearance has something to do with the time machine.

In search of Danny, Allen's team contacts a time travel expert in the hope that he will help them unlock the machine's secrets. With the help of experts, Allen's team managed to kick-start this time machine. They decide to venture back in time to find the missing Danny.

In the process, Alan and his team experienced unprecedented time travel. They arrive in a completely different era, and at the same time, they discover Danny's traces. After a series of adventures and challenges, Eren finally finds the missing Danny and manages to bring him back to the real world.

Alan and his team learned a lot about time during this time trip. They come to understand that time is a complex and magical being, and that mastering its power is both dangerous and tempting. Alan silently vowed in his heart that he would be more cautious about this paranormal phenomenon in the future.

After Danny was brought back to the real world, Allen's team handed over the time machine to the relevant departments for research. They hope to learn from this experience so that similar accidents don't happen again.

After returning to the real world, Danny realizes that his desire for time travel has caused him and his family immense pain. Grateful that Allen's team was able to save him, he decided to turn his interests in other directions and try to live a normal life.

This experience gave Allen's team a deeper understanding of the paranormal. They began to focus more on researching and solving cases related to paranormal phenomena. Alan realizes that in the face of unknown forces, courage and wisdom are equally important. He decided to continue to improve his abilities in his future career as a detective and fight for justice.

At the end of the series, Alan and his team celebrated their victory. However, they also know that this is only the beginning of their exploration in the supernatural realm. New challenges and unknown dangers await them, and they must be prepared for them.

In this ending, Allen's team receives a new case involving mysterious black magic and spooky rituals. Faced with this new challenge, Alan and his team are undaunted and ready for the next adventure. The investigation of this case will unravel the mystery of more uncharted territory for them, bringing a whole new chapter to this story.