Sergeant Chow’s actions are misconstrued, but in the face of tough challenges, the girls develop a stronger bond and mature together. Lieutenant Roxanne Tan complicates Joey's relationship with her boyfriend. The girls go through gruelling obstacles in their GBMT journey, which eventually lands them in a dangerous situation and their actions will shock the nation.

WHAT IF, in the unforeseen future, when there are not enough boys in Singapore? If Girls have to serve National Service also, what will happen? The story will focus on the first batch of female recruits, a bunch of Gen Z teens and youngsters with different backgrounds and education. As they trained under the fierce leadership of Sergeant Chow and Lieutenant Roxanne, they find themselves being pushed to the limit of their potential. Together, they overcome hardship and initial resistance to serve NS and discover newfound abilities, using it to solve and mend relationships in their personal life as well.