S1·E19 Episode 19

During the confrontation with Zhang Changlin's men, the situation takes a bizarre turn. As Changlin attacks Zhang Haixia, a strange, crazed persona seems to take hold of Haixia. Muttering violently, he pulls out a grenade, prepared to blow up his attacker and himself. Zhang Hailou watches in utter disbelief, barely recognizing his brother. Fortunately, Changlin manages to dive away just before the explosion.