After suffering a tragedy at the hands of a violent criminal group, a blind Kang Gi-beom receives an operation for a special new pair of eyes.

On a team mission at the ARGOS leader's wedding, Gi-beom runs into someone who haunts his memories; Hwang Deuk-gu is tired of being the underling.

While ARGOS leadership engages in a power struggle, Gi-beom speculates about the origins of a dangerous device retrieved from a dead man's head.

Gi-beom's disobedience comes with consequences; when Deuk-gu unleashes chaos at a jazz club, Lee Gwang-cheol faces a shocking situation.

Left with no one to trust, Choi Ye-won realizes she needs protection; a package leads the team toward an ARGOS hideout.

Gi-beom makes a startling discovery after planting a listening device; Han Tae-woong recalls the tragedy that brought him to RUGAL.