An overseas delegation led by the foreign minister gathers at a country club, policemen Zhang Gui Xiang (Elvin Ng) and Han Xiao Yang (Tracy Lee) are patrolling the golf course when a garbage can explodes. At another part of the island, a group of workers gathered outside a commercial building demanding higher wages. Inspectors Tang Yao Jia (Qi Yu Wu) and Liao Xin Yi (Joanne Peh) rush onsite to pacify and disperse the crowd. Chaos breaks out when someone shouted anti-government slogans.
On an island outside of Singapore, patrol boat commander Zhang Cen Lin (Chris Tong) and her team are investigating strange blasting noises and discover bomb remnants. She suspects that bomb testing is being carried out on the island.
Singapore is hosting the World Security Summit, Senior Station Inspector Zhong Yi Da (Tay Ping Hui) worries that the series of events may be connected in some ways to jeopardise the Summit. Who is the group masterminding the plot and what is their real motive?