A driver Ma Xiaojun, who has been transporting mental patients for years, accidentally loses a mental patient outside his lover's shop during one of his job trips. At their wits' end and afraid of taking responsibility Ma and Xiao Feng come up with a daring idea to catch some customers and send them to the hospital as mental patients.

Taoist Yan Chi Xia and scholar Ning Cai Chen battle the tree demon Grandma at Lanruo Temple to rescue Nie Xiao Qian. During the fight, the golden seal of the universe accidentally transports them to the modern era. There, they save a woman named Yuan Yuan from a demon and temporarily stay at her home, causing chaos in her life. Meanwhile, Grandma and a snake demon also arrive in the modern world, plotting to bring Lanruo Temple into the present and turn Earth into a demon paradise. Unbeknownst to them, they are pawns in Grandma’s larger scheme. Away from the temple too long, Nie Xiao Qian begins to lose her powers and faces possible disappearance.