1. The New Team / Three Years Ago

Part 1: A gang of industrial spies led by a man named Michael Lee kills off an entire team of National Intelligence Service Agents. Dong Gwan Su becomes the new leader of Industry Security Team 3 and must put together a group of agents. However, his choices are limited and with the deputy head’s orders, he has to take an eccentric agent on board. Part 2: The story of how Chan Mi ended up taking the blame for losing Michael Lee and going to prison is revealed. Three years ago, in full swing of the operation to catch Michael, Ye Eun gives birth to her baby alone. Both Chan Mi and Mi Soon suffer a blow when they lose a teammate. Now the three women must come together to catch Michael once and for all.