The team gets a major break in the Sandstorm case when they discover Shepherd's true identity... and a decades-old connection between her and Weller.
Katie's kittens are all covered in mud and running amuck! If they're not rounded up, the Cat Show will be ruined.
Fearful that the romance between him and Claire is fizzling, Phil calls upon his altar ego, Clive Bixby, to get Valentines day back on track. Meanwhile, much to Glorias chagrin, Jay shows a bit of child favoritism when they must deal with Joes inappropriate Valentine gift-giving and Mannys dating indecisiveness. When Cam and Mitch try to empower Lily, Haley and Sal to stand up to the men in their lives, things dont turn out as planned. Finally, Alex discovers she has a secret admirer who may be a little too involved with family.
Rachel receives a letter that creates an unexpected issue for Harvey and Louis. Mike's mentorship of Oliver and Marissa gets put to the test. And Donna gets a surprise from the IT department.
Adam feels like he's losing his best friend, Chad, so he attempts to join the tennis team. When Chad picks Dave Kim as his partner, Adam vows to take him down with Barry in a tennis match, changeling Andre Agassi. Meanwhile, with the help of Beverly, Erica deals with her post-break up depression just in time for Valentine's Day.
Everest and Jake try to rescue a little penguin and end up floating out to sea.
Dre and Bow have a gender reveal party, and Dre is thrilled because it’s his turn to name the baby. He decides on a culturally significant name that Bow and Ruby aren’t a fan of. Meanwhile, Zoey’s plan to have an anti-Valentine’s Day with her friend Shelly is thwarted when Junior asks Shelly out on a date, so Diane tries to fill in as Zoey’s BFF.
Quentin and friends prepare to face The Beast again. Julia conspires with The Beast and their new ally to lure and trap Reynard.
Maya attempts to give Jimmy a Valentine's Day gift, with the help of his old roommate and her ex-fiance. Meanwhile, Ray is elated to find out he has a secret admirer and JJ i in charge of distributing candy-grams, which proves challenging for both him and Kenneth.
The burden of leading weighs heavily upon Clarke and Bellamy when different challenges force them to determine who will live and die.
In a local Chicago diner, Michael brings new meaning to the term hold the pickles. Plus, he discovers an aggressive new breed of fungus at a park, and later, he helps a co-worker disappear from work early in a hospital warehouse.
The doctors work with the Center for Disease Control and Prevention to find an antidote to the deadly viral outbreak at Angels Memorial. Also, Leanne makes a life-changing decision, and Jesse welcomes a new batch of residents.
Sarah and Cal learn that the FBI is investigating The Movement. Hawk and Noa grow closer, while Mary and Sean deal with challenges to their relationship. After an outburst at the casino with Chloe, Eddie joins a support group for former cult members.
Star must show her fairy godmother, Baby, what she has learned about magic.
The guys throw their own version of Coachella to impress a group of festival girls.
A brutal car crash reveals that Cahill is the target of a murderous stalker, causing Riggs and Murtaugh to turn the tables and start asking her questions for a change. After finding Murtaugh's file in Cahill's office, Riggs becomes obsessed with finding out about his. Roger and Trish reel over their daughter's newfound fake ID.