The Biggest Threat - Dynasty
Watch Dynasty Season 1 Episode 21
"Trashy Little Tramp"
Original Air Date:

On Dynasty Season 1 Episode 21, Fallon realizes that the biggest threat is actually Blake when he thwarts her attempts to take the company in a new direction.

Meeting With the Enemy - Agents of S.H.I.E.L.D.
Watch Agents of S.H.I.E.L.D. Season 5 Episode 20
"The One Who Will Save Us All"
Original Air Date:

On Marvel's Agents of S.H.I.E.L.D. Season 5 Episode 20, Talbot tries to stop the destruction of Earth and decides it is time to take Coulson to meet the enemy.

Bill Nye Visits the Lab - Blindspot
Watch Blindspot Season 3 Episode 20
"Let It Go"
Original Air Date:

On Blindspot Season 3 Episode 20, Patterson's father helps the team, while Jane gets shocking news about Avery's father as she and Weller hunt down a criminal.

Choosing a Path - Once Upon a Time
Watch Once Upon a Time Season 7 Episode 20
"Is This Henry Mills?"
Original Air Date:

On Once Upon a Time Season 7 Episode 20, in a flashback, a young Henry gets a phone call that changes his path, while in present time Lucy helps to wake Henry.

Aiden Keeps the Faith - Life Sentence
Watch Life Sentence Season 1 Episode 7
"Our Father the Hero"
Original Air Date:

On Life Sentence Season 1 Episode 7, Aiden keeps the faith that Peter will keep him out of trouble, but Stella struggles with telling him who called the police.

Confronting Georgie - The Big Bang Theory
Watch The Big Bang Theory Season 11 Episode 23
"The Sibling Realignment"
Original Air Date:

On The Big Bang Theory Season 11 Episode 23, Sheldon's mother won't attend his wedding unless he invites his brother, Georgie, so Sheldon heads to Texas.

Arizona and Maluca on the Case - Grey's Anatomy Season 14 Episode 22
Watch Grey's Anatomy Season 14 Episode 22
"Fight For Your Mind"
Original Air Date:

Alex and Jo go on a road trip to Iowa to find Alex’s mom, whom he hasn’t heard from in a very long time. Meanwhile, Meredith gives a presentation on her mini-livers project, which attracts a ton of attention; and Jackson works to rebuild the foundation after its reputation is threatened.

He's Back! - Arrow
Watch Arrow Season 6 Episode 21
"Docket No. 11-19-41-73"
Original Air Date:

On Arrow Season 6 Episode 21, Oliver takes to the stand to plead his case, but a surprise visitor in the courtroom threatens to change everything.

Renee Royce Returns  - Chicago Fire
Watch Chicago Fire Season 6 Episode 21
"The Unrivaled Standard"
Original Air Date:

On Chicago Fire Season 6 Episode 21, Kidd regrets a decision she made regarding Severide, while Casey comes up with a plan to help Chief Boden.

Working Together - Supernatural
Watch Supernatural Season 13 Episode 21
"Beat the Devil"
Original Air Date:

On Supernatural Season 13 Episode 21, Sam, Dean, Castiel and Gabriel must work together if they have any hope of bringing Mary and Jack home.