Clarke (Eliza Taylor) begins to question Lexa’s (guest star Alycia Debnam Carey) leadership decisions.
Dean (Jensen Ackles), Sam (Jared Padalecki) and Castiel (Misha Collins) deal with Cain’s (guest star Timothy Omundson) return.
After the nuclear explosion separates Ronnie (guest star Robbie Amell) and Dr. Stein (guest star Victor Garber), Barry (Grant Gustin) and the team believe both men are safe.
It’s Jeremy’s (Steven R. McQueen) last day in Mystic Falls and Elena (Nina Dobrev) puts on a brave face as they reminisce about their past.
Tensions between Clarke (Eliza Taylor) and Abby (Paige Turco) come to a head after Clarke crosses the line.
Oliver (Stephen Amell) is thrown by the changes within Team Arrow.
ghost starts killing people through various electronic devices.
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.