Dal-mi and In-jae's self-driving car is hit by a ransomware attack. Samsan Tech founders return after a successful three-year stint in San Francisco.

Tasked with recruiting top developers into her company, Dal-mi pitches her idea at Samsan Tech. Do-san gets away to clear his head.

Jung Sa-ha and Lee Chul-san begin dating in secret. A boozy, heartfelt conversation with Do-san helps Ji-pyeong make a decision about Dal-mi.