Plot: YUNG, HOI and HAY are hurt and sent to hospital, WAI is killed in the explosion. Ignoring CHIT'S warning, YUNG questions HOI, HOI admits that he had falsely blamed HAY and FAY, so he tried to kill them with HING's assistance, As JIMMY had seen HING at the scene, HING killed him, Later they realized that they had made a serious mistake, Thus they tricked WAI and tried to kill him with the explosion, FAY's case is solved