After Ronnie (guest star Robbie Amell) attacks a physicist (guest star Bill Dow), Barry (Grant Gustin) and the team realize they need to go after Caitlin’s (Danielle Panabaker) fiancé who is now a dangerous meta-human.
More dangerous than ever, Vincent (guest star Yusuf Gatewood) remains one step ahead after joining forces with a powerful figure from his past.
Jane (Gina Rodriguez) and Rafael (Justin Baldoni) are excited to find out the sex of the baby, but a medical issue means Jane might miss her graduation.
As the castle prepares for the Winter’s Ease Feast, King Antoine (guest star Ben Aldridge) of Navarre reveals to Francis (Toby Regbo) and Mary (Adelaide Kane) England’s plan for revenge against France.
Determined to celebrate Bonnie’s (Kat Graham) birthday, Elena (Nina Dobrev) convinces Jeremy (Steven R. McQueen) that it’s what Bonnie would have wanted.
Bellamy (Bob Morley) and Lincoln’s (Ricky Whittle) attempt to sneak into Mount Weather has brutal consequences.
Still operating without Oliver (Stephen Amell) and desperate to stop Brick (guest star Vinnie Jones), Team Arrow is forced to consider Malcolm’s (John Barrowman) offer to help shut Brick down as Malcolm has a personal score to settle with the felon.
Looking to get Dean (Jensen Ackles) out of the bunker, Sam (Jared Padalecki) finds a case for him and Dean to investigate – people are disappearing into thin air with only their clothes left behind.
After a series of strange encounters, Rebekah (guest star Maisie Richardson-Sellers) becomes intrigued by a mysterious girl who has recently arrived to the insane asylum.
Jane (Gina Rodriguez) gets a big break in her career, but it all seems too good to be true, especially when it involves Rogelio (Jaime Camil).