First story’s are wrapping up in preparation for next week’s crossover in the DCETVU1, and at least for the two first two shows, we get a bonus scene apparently set in the Flash of the past.  Supergirl has Manchester Black meet his nemesis.  Arrow shows us how Oliver readjusts to his new, post-incarceration status quo.  The Legends gives us Constantine’s backstory and some interpersonal drama.  The Flash, the current one, goes back to the past, but not the 90s past.  Black Lightning and the Lightning family discover the Lightning Teen’s disappearance.  Titans revisit the Hawk and Dove back when they weren’t heroes.  In the mutant corner of Marvel’s television promises some major shake-ups.  In the dark television version of Riverdale, we get a man dressing to match their tone.

[All synopses (and titles) from Trakt.tv below the cut.  (If a show’s synopsis is a spoiler to you, do not click More…)]

Supergirl – S04E08 – Bunker Hill – Nia has a powerful dream about Agent Liberty but refuses to look at it as a prophetic dream, Kara and Brainy try to persuade Nia to embrace her destiny, and Manchester Black pays Ben Lockwood a menacing visit.

Arrow – S07E0 – Unmasked – Felicity stands by her recent decisions regarding her family; Diggle and Lyla continue to look into the Dante painting that Curtis found.

DC’s Legends of Tomorrow – S04E07 – Hell No, Dolly! – With Rory and Ava at odds, Sara tries to come up with a way for them to get along, but all is put on hold when a new magical creature attacks the Legends. Constantine is forced to confront his tragic past but it could have devastating consequences for the rest of the team. Meanwhile, Mona has a crush on someone she works with and gets some advice from Nate.

The Flash – S05E08 – What’s Past Is Prologue – Barry and Team Flash come up with a plan to stop Cicada. However, the plan calls for Barry and Nora to travel back in time to gather some key necessities. However, Barry hesitates, concerned about his daughter seeing certain parts of his life. Meanwhile, Sherloque takes his concerns about Nora to Iris, and Caitlin turns up a key asset in the fight against Cicada.

Black Lightning – S02E08 – The Book of Rebellion: Chapter One – Jennifer’s disappearance roils the Pierce family. The family discusses the best way to find her. Lynn asks Detective Henderson to arrest Khalil after she learns Jennifer is with him. (From IMDB)

Titans – S01E09 Hank and Dawn – The origin story of Hank Hall and Dawn Granger’s relationship and the loss in each of their pasts that brings them together as vigilante Super Heroes Hawk and Dove.

The Gifted – S02E09 – gaMe changer – Tensions within the Inner Circle are at an all-time high, as Andy comes to Rebecca’s defense against Reeva. After making an important discovery about Dr. Risman’s research, Lauren convinces Reed and Caitlin that they must take action to destroy it. Frustrated with not being taken seriously, Jace begins to strategize with the Purifiers. Meanwhile, the Mutant Underground continues to work on saving mutants. However, tensions flare between Blink and Thunderbird as they confront their differences. (Review coming soon!)

Riverdale – S03E07 – Chapter Forty-Two: The Man in Black – Fearful that he will be caught, Archie hits the road and ends up at a farm outside Riverdale, where he meets Laurie Lake. Meanwhile, after Alice takes extreme measures to ensure Betty’s safety from the Gargoyle King, Betty finds herself up against a formidable foe from her past. Finally, after learning that La Bonne Nuit is in trouble, Veronica makes a risky business decision that could cost her everything.

1 Detective Comics Expanded TeleVision Universe.