Prophesized Chain Reaction - Agents of S.H.I.E.L.D.
Watch Agents of S.H.I.E.L.D. Season 5 Episode 18
"All Roads Lead"
Original Air Date:

On Marvel's Agents of S.H.I.E.L.D. Season 5 Episode 18, the team must find a way to stop the prophesized chain reaction that can destroy the Earth.

A Night Out - Blindspot
Watch Blindspot Season 3 Episode 18
"Clamorous Night"
Original Air Date:

On Blindspot Season 3 Episode 18, Roman's allegiances are tested, while the team must deal with a deadly threat that may put all of their lives in jeopardy.

Visiting Alice - Once Upon a Time
Watch Once Upon a Time Season 7 Episode 18
"The Guardian"
Original Air Date:

On Once Upon a Time Season 7 Episode 18, in a flashback, Rumple, desperate to be with Belle, pays Alice a visit, while Weaver finds the Dagger in the present.

Keeping Secrets - Jane the Virgin
Watch Jane the Virgin Season 4 Episode 17
"Chapter Eighty-One"
Original Air Date:

On Jane the Virgin Season 4 Episode 17, Alba's big day finally arrives, while Petra and JR make a decision, and Jane realizes that Rafael is keeping a secret.

The Comic Book Store Experience - The Big Bang Theory
Watch The Big Bang Theory Season 11 Episode 21
"The Comet Polarization"
Original Air Date:

On The Big Bang Theory Season 11 Episode 21, friendships end up being threatened when Koothrappali takes credit for Penny's astronomical discovery.

A Special Batch of Cookies - Grey's Anatomy Season 14 Episode 20
Watch Grey's Anatomy Season 14 Episode 20
"Judgment Day"
Original Air Date:

During presentations on Grey Sloan Surgical Innovation Prototypes Day, Arizona shares some cookies from an appreciative patient that, unbeknownst to her, contain a special ingredient. Meanwhile, Catherine reveals some shocking details to Jackson about his grandfather’s past; and Jo steps in mid-operation on a major surgery after Bailey and Meredith are down for the count.

Casey Is Suspicious - Chicago Fire
Watch Chicago Fire Season 6 Episode 19
"Where I Want To Be"
Original Air Date:

On Chicago Fire Season 6 Episode 19, Kidd makes a big decision, while Casey is skeptical of Cordova after money is found missing from the crime scene.

A Deadly Mission - Supernatural
Watch Supernatural Season 13 Episode 19
Original Air Date:

On Supernatural Season 13 Episode 19, when Rowena determinedly sets off on a deadly mission, Sam and Dean must figure out a way to stop her.

Expanding The Empire - Arrow
Watch Arrow Season 6 Episode 19
"The Dragon"
Original Air Date:

On Arrow Season 6 Episode 19, Felicity and Curtis double their efforts on building Helix Dynamics, while Diaz and Laurel meet with The Quadrant.

Barbara's In Danger - Gotham
Watch Gotham Season 4 Episode 19
"To Our Deaths and Beyond"
Original Air Date:

On Gotham Season 4 Episode 19, Barbara is put in danger, while Gordon and Bullock try to find who the clever thief is behind the robberies of various banks.