Reset (Chinese: 开端; pinyin: Kāiduān; lit. 'Beginning') is a Chinese time-travel whodunit series, starring Bai Jingting and Zhao Jinmai in the lead roles. It is based on a novel by Qidaojun, and is directed by Sun Molong and Liu Hongyuan. It tells the story of a college student Li Shiqing and a video game designer Xiao Heyun who are trapped in a time loop on a soon-to-explode bus. On 11 January 2022, the series premiered on Tencent Video.

The show was a critical and commercial success, and won many awards. In September 2023, producer Hou Hongliang and writer Qidaojun announced an upcoming companion series titled Restart. The series sets record of reaching fastest 30K 'Popularity Heat Index' points in Tencent.