Derailment Episode Rating Graph

A wealthy woman questions her reality and identity when she wakes up after a car accident living in another life and time.

After waking near the accident site, Jiang Xiaoyuan struggles with confusion over the crash and receives unexpected help from a stranger named Qi Lian.

Though badly in need of money, Xiaoyuan remains wary of Qi Lian's offers of assistance. Her phone provides a possible link to her own time.

New dangers bring Xiaoyuan and Qi Lian closer together. Xiaoyuan begins to find her footing thanks to a chance to work at a hair salon.

Xiaoyuan struggles to improve her status at the hair salon until some tips from Qi Lian bolster her abilities and her confidence.

Visiting Xiaoyuan's grandmother leaves Qi Lian with fresh questions. An act of sabotage upends Xiaoyuan's improving situation at work.

Risking her job, Xiaoyuan goes to meet an online friend who claims to know about time travel. A new revelation brings Qi Lian closer to the truth.

Pressures push Xiaoyuan to her breaking point as she faces hardships at the hair salon and Qi Lian blames her for her other self's disappearance.

Accusations and revelations bring big changes at the hair salon. Qi Lian's attempt to trigger Xiaoyuan's memories of her other self creates conflict.

Xiaoyuan faces a challenging situation when she helps out a co-worker on Christmas Eve. Qi Lian's investigation into Xiaoyuan's phone yields a new clue.

Xiaoyuan clashes with her new instructor, Jiang Bo. Qi Lian's investigation attracts unwanted attention, leading him to believe he's being tracked.

Xiaoyuan puts her own advancement at risk when she helps her fellow trainees. Qi Lian uncovers a connection to a person in Xiaoyuan's past.

A dangerous incident causes Xiaoyuan to realize Qi Lian's been withholding information from her, imperiling their arrangement.

Xiaoyuan pays the price for a misdeed committed by her other self. Qi Lian realizes just how much Xiaoyuan needs his protection.

With the troupe's performance at risk of cancellation, Xiaoyuan strives to save it. Her tensions with Feng Ruixue lead to a standoff.

Boyu's sudden appearance raises the possibility of Xiaoyuan returning to her original world, but Qi Lian senses the danger he may really pose.

As Boyu's startling claims leave Xiaoyuan wondering who she can trust, Qi Lian races to discover his own answers about the Lighthouse System.

Xiaoyuan finds solace among her friends at the hair salon before visiting her hometown. Qi Lian tries to determine what's going on in Boyu's mind.

Reading her other self's diary, Xiaoyuan reels at the details it contains about her history and the origins of her relationship with Qi Lian.

As the diary details an earlier crisis for Qi Lian and the original Xiaoyuan, her counterpart's disappearance provokes a new emergency in the present.

The discovery in the time capsule forces Xiaoyuan and Qi Lian to question everything they think they know — and to seek answers at a shadowy laboratory.

Xiaoyuan and Qi Lian grow closer as he recovers from the recent events. Questions arise about Xu Jingyang's role in the experiment.

Fearing she will endanger Qi Lian because of what she now knows about the experiment's effects, Xiaoyuan tries to move on by reconnecting with Jiang Bo.

Qi Lian discovers the laboratory's potential place within a wider web of connections. Xiaoyuan goes on a business trip with Jiang Bo.

As Xiaoyuan hopes to advance her career, secrets in Jiang Bo's past and his efforts to defy his mother, Fan Xiaoxiao, threaten to upend all their lives.

After the incident at the gala, Jiang Bo and Qi Lian both come to Xiaoyuan's aid. Details emerge about Fan Xiaoxiao's role in the Lighthouse System.

Xiaoyuan tries to help Jiang Bo escape his mother's control, but Qi Lian remains suspicious about his true intentions.

Xiaoyuan's success as a beauty blogger drives interest in the new studio. Qi Lian revisits a painful moment in his past with Xiaoyuan.

Despite a setback for Xiaoyuan and Jiang Bo, the studio continues to boom. But upon discovering a chip inside her, she begins to reckon with the truth.

Xiaoyuan grapples with what she's learned about the Lighthouse System, only for Qi Lian and her to face their greatest danger yet.