Over Run Over

EU Sergeant LING SUN-FUNG leads her EU team members to go on patrol until midnight, and for the sake of her team members' health, she even changes the menu of their meals on her own initiative. In an effort to hunt down suspects, SUN-FUNG leads her team to arrive at a walled village, where they are obstructed by the village chief, KWAN TING-MING, and his men. During the meeting, LEE SIR reports that some security employees were injured by the suspects, and SUN-FUNG reiterates that they would have captured the suspects had they not been obstructed by TING-MING. SUN-FUNG's boyfriend KWOK SHEUNG-CHING intends to propose marriage to SUN-FUNG while walking her home, suddenly, they hear thunder rumble in the sky. The following day happens to be April Fools' Day, so SUN-FUNG's younger brother, SUN-KWONG, carries out the tradition to play a prank on SUN-FUNG.… ...

After waking up in the morning, SUN-FUNG finds things turn out to be exactly the same as those that happened on April 1st. SUN-FUNG recalls the time when LING HOI quarreled with HAU-KUEN the day before, so she deliberately prevents them from meeting each other. On top of that, she even tells LING HOI to go travelling in hopes of helping him evade the disaster. Upon her arrival at the bar, SUN-FUNG spots the wanted criminal named LAT, so she promptly calls for backup. Finding himself besieged by the police with nowhere to escape, LAT instantly takes a minibus passenger hostage, surprisingly, SUN-FUNG discovers the hostage turns out to be LING HOI. SUN-FUNG thinks travelling through time back to April 1st could alter their destiny, yet things take an unexpected turn, to which SUN-KWONG explains as the "butterfly effect".… ...