When Castle and Becket apply for their marriage license, they find out that Becket is already married. They have to track down the "husband" and get him to sign divorce papers, but two groups of armed thugs also want him. Meanwhile, back in New York, multiple calamities strike that could delay the wedding, but Alexis, Lanie, and Martha find creative solutions. Finally, Becket is at the ceremony waiting for Castle.
—Dr. Bits