On October 3, 2019, the still photos and studio photos were released for the first time
. On October 4, the film released its first trailer
. On October 24, the poster was exposed
. On December 27, it was announced that the release time in Mainland China was January 10, 2020
. On December 29, the trailer for "Defend Justice" was exposed
. On December 31, the trailer for the "Ordinary Hero" version was exposed
.
On January 7, 2020, the "tragic complaint" was exposed
. On January 10, the trailer and poster of the "Justice Coming" version were exposed
. On January 17, the "Unswerving" version of the trailer was exposed
. On January 12, the trailer of the "Overcoming Difficulties Together" version was exposed, reproducing the stage of the mother's tragic complaint to save her son's reputation
.
