Reset (Chinese: 开端; pinyin: Kāiduān; lit. 'Beginning') is a Chinese time-travel whodunit series, starring Zhao Jinmai and Bai Jingting 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.