Liv (Rose McIver) and Clive (Malcolm Goodwin) investigate the mysterious death of a former sniper, Everett (guest star Ronald Patrick Thompson), who has been working as an instructor at a paintball facility.
As Wells (Tom Cavanagh) once again gets the upper hand on the S.T.A.R. Labs team, Barry (Grant Gustin) realizes he needs to make a big move and reaches out to an old foe, Captain Cold (guest star Wentworth Miller), for help.
After having false labor, Jane (Gina Rodriguez) insists that Xo (Andrea Navedo) and Rogelio (Jaime Camil) go to Las Vegas to perform their show, but once they are gone the labor turns very real.
With time running out, Klaus’ (Joseph Morgan) ultimate plan to protect baby Hope at all costs continues to take shape.
As troops are about to descend on the castle, Mary (Adelaide Kane) and Francis (Toby Regbo) must put aside their differences to determine the extent of Condé’s (Sean Teale) betrayal.
It’s Alaric (Matt Davis) and Jo’s (guest star Jodi Lyn O’Keefe) wedding day and Elena (Nina Dobrev) and Bonnie (Kat Graham) do their best to help a stressed out Jo with the last minute preparations.
Dean (Jensen Ackles) and Sam (Jared Padalecki) investigate a bizarre murder and realize the killer bears the same tattoo as those from the Styne family.
Oliver/Al Sah-him (Stephen Amell) finishes his training and is left with two final tasks to become the next Ra’s al Ghul.
Liv (Rose McIver) and Clive (Malcolm Goodwin) work together to solve the murder of a morning radio talk show host who specialized in relationship straight talk.
Barry (Grant Gustin) must deal with the Reverse Flash’s (Tom Cavanagh) latest threat to a member of the group.