Clark and Lois are made partners and sent to investigate an upcoming boxing competition. They discover that several of the contenders have illegal bionic parts built by Sam Lane, Lois' father.
Lois decides to go undercover at a club which is a front for crime family. Clark decides to go undercover as well. When the sister usurps her brother, she makes a move on Clark. And to stay on her good side he outs Lois.
To investigate shady meetings between a Congressman and an arms dealer, Lois and Clark go undercover as a honeymooning couple. The experience teaches them a little of what it would be like to share their lives with someone.