The cadets have learnt that PONG’s father, KWOK PUI, was SING’s superior. They tease that he has someone there to support him in the back. PONG is unhappy. Both SING and KEN have noticed that PONG has been behaving oddly, yet he denies. MAN has lost his cell phone and suspects that FA has stolen it. MAN follows FA, and sees her, together with FIONA, taking an old lady, who is lost, home. FA has helped the old lady found her grandson, SHEK CHAI. FIONA has left her cell phone there, nevertheless. PONG is performing very badly again at the firing range. SING suggests him taking a rest at home but he insists that he is fine. MAN suggests firing a complaint against SING for putting too much pressure on PONG and asking for a transfer of SING. KEN does not agree with his ideas, ending up being boycotted. SING and ANN give the cadets a pop physical test. PONG collapses during the test and is taken to hospital……