Opal Alladin

When Holmes and Watson investigate a clown's murder upstate, they discover a connection between his death and the creation of a new weaponized virus. Also, Watson helps Bell when he's targeted by his new love interest Chantal's (Chasten Harmon) ex-husband in attempt to sabotage her career at the district attorney's office.

When FBI Agent Dana Lewis suspects that a 25 year-old rape-murder case in New York is connected to several unsolved cases across the country, she joins the SVU in investigating the crimes. As Lewis relentlessly pursues her prime suspect, Detectives Benson and Amaro have their doubts about his guilt.

Reese and Finch realize that a virus has rendered The Machine erratic, causing it to issue numbers irregularly. As they race against the viral countdown, the team searches for a tech millionaire so elusive no one has ever seen him. Also, Detective Carter's mission to bring Cal Beecher's murderer to justice lands her squarely within the sights of the HR criminal organization.

Eddie and her partner, Officer Rachel Witten (Lauren Patten), are heralded for their bravery for stopping an active shooter, until a civilian comes forward to accuse them of faking the incident as part of a government conspiracy. Also, Frank pries into a decades-long history of cash payments his father Henry has been making to an unknown recipient, Danny and Baez find themselves in the middle of a fierce sibling rivalry between two brothers as they investigate the murder of the men's father, and Sean contends with his school locker being vandalized with anti-police sentiment.

Alicia is conflicted when she's presented with a career changing offer which carries a large financial risk. Michael J. Fox and Maura Tierney guest star.