P1Harmony is gearing up to make a comeback!

On July 4 KST, the FNC Entertainment boy group announced they would be coming back with their 4th mini album 'HARMONY : ZERO IN' and title track "Doom Du Doom" via a special prologue video. In the clip, triumphant music plays as member Intak successfully lights a wooden bat on fire then uses it to light an outdoor grill beside them.

Meanwhile, 'HARMONY : ZERO IN' is set for release on July 20.

Check out the full prologue above!