"I Do" gained mostly positive reviews, with much praise to the cliffhanger ending, and had 17.15 million American viewers upon release.While on the run from the law, Kate goes to Miami, where under the name "Monica" she meets and marries a police officer, Kevin Callis (Nathan Fillion), even getting from his mother, Suzanne, a gold locket that had been passed down on the female side of the family (Suzanne never had any daughters).