CURTIS GOES UNDERCOVER FOR ARGUS — Still in prison, Oliver (Stephen Amell) faces his biggest challenge yet. Meanwhile, Felicity (Emily Bett Rickards) gets an intriguing offer, and Diggle (David Ramsey) asks Curtis (Echo Kellum) to go undercover for ARGUS. Gordon Verheul directed the episode with teleplay by Onalee Hunter Hughes & Sarah Tarkoff and story by Elizabeth Kim (#703).

NOT YOUR TYPICAL FAIRY GODMOTHER — When the magical Time Seismograph goes off, the team finds themselves headed to the Salem witch trials. Sara (Caity Lotz) notices that Zari (Tala Ashe) is taking this case personally when she promises to save a mom, who is being accused of being a witch. However, the team quickly learns that there is a magical creature in the town creating problems they hadn’t been expecting. Meanwhile, Nate (Nick Zano) and Ava (Jes Macallan) work together to try to keep their Time Bureau funding by proving to them that magic exists. Matt Ryan, Dominic Purcell and Brandon Routh also star. Kevin Mock directed the episode written by Keto Shimizu & Matthew Maala (#402).

NORA IS TARGETED BY A DANGEROUS META — Barry (Grant Gustin) and Iris (Candice Patton) face the ultimate parenting test when Team Flash battles Spin (guest star Kiana Madeira), a savvy millennial armed with meta tech, and a dangerous agenda for their daughter, Nora (Jessica Parker Kennedy). Ralph (Hartley Sawyer) is feeling defeated until an unlikely source issues a challenge to help boost his confidence. Brent Crowell directed the episode written by Kelly Wheeler & Lauren Certo (#504).

RULES ARE MADE TO BE BROKEN — Oliver (Stephen Amell) makes a drastic move in his quest to find Diaz (Kirk Acevedo). Like her husband, Felicity (Emily Bett Rickards) pulls out all the stops to get to Diaz. Meanwhile, when arsonists target Rene’s (Rick Gonzalez) community center, injuring Zoe (guest star Eliza Faria) in the process, the mysterious new Green Arrow swoops in to help save the day. Faced with pressure from the mayor to capture the vigilante, Dinah (Juliana Harkavy) must decide if following the rules at all costs is the best plan to keep the city safe. Ben Bray directed the episode written by Emilio Ortega Aldrich & Tonya Kong (#704).

LONG LIVE THE CORGI — When the Legends discover a fugitive is hiding in 1970’s London, they realize he is part of a gang that is targeting the British Monarchy. Trying to stop the gang, they realize someone from the Legends must infiltrate them. Surprising everyone, Ray (Brandon Routh) is the one to gain their trust after he is put through a series of tests with help from Sara (Caity Lotz) and Rory (Dominic Purcell). Meanwhile, Gary (guest star Adam Tsekhman) shows Nate (Nick Zano) the ropes at the Time Bureau, but it turns out to be anything other than an ordinary day at the office. Maisie Richardson-Sellers, Matt Ryan and Jes Macallan also star. Kristin Windell directed the episode written by James Eagan & Morgan Faust (#403).