Marshall begins his new job at Barney's law firm and quickly finds that Barney's colleagues are crude, obnoxious and laddish, mocking everything from his packed lunch to his fiancé. However, he doesn't want to give up, and learns to adapt.
The sisters come to the aid of Mylie, a mermaid-turned-human who needs their help to escape from a pact that she has made with an evil water demon called the Sea Hag.
In one night, the team investigate three cases which seem to be unrelated to one another.
Slowly, members of Kira's former resistance cell are murdered.
Kira reluctantly returns to Bajor on a mission against Shakaar, her leader during the resistance movement.