This week is a week off for half of the Arrowverse, but special guest Denethor Crashes the Legend’s episode as John Noble appears and pretends to be the voice of the character he voices.  I think the Legends are turning “meta” into a weapon.  Black Lightning reaches the painful point of his allegory.  Supergrandpa begins his new job.  Meanwhile, Arrow showcases dating woes.

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

Lucifer – S03E20 – The Angel of San Bernardino – Returning on April 16, 2018. – Lucifer and Chloe investigate a murder during which a witness claims a winged guardian angel saved her life, causing Lucifer to become paranoid about his own actions. Meanwhile, Pierce and Chloe’s relationship takes an interesting turn and Lucifer discovers something that could change everything.

Supergirl – S03E14 – Schott Through the Heart – Returning on April 16, 2018. – When Winn’s father dies, his estranged mother, Mary, reappears trying to reconnect and to explain why she abandoned him all those years ago. Winn is too embittered from his rough childhood to forgive her but when a copycat Toyman attacks, the two must work together to stop him. Mon-El tells Kara something important about the Worldkillers, and Alex becomes suspicious of Myr’nn’s recent behavior.

DC’s Legends of Tomorrow – S03E17 – Guest Starring John Noble – With the timeline barely stable, the Legends must tackle two anachronisms at the same time to try and keep Mallus at bay. Sara and Rip team up to stop Grodd from going after a particular target leaving Nate and Wally to stop Amaya from changing her future. Meanwhile, the Legends think they have found a way to destroy Mallus, but they will have to create an uneasy alliance with one of their enemies.

The Flash – S04E17 – Null and Annoyed – Returning on April 10, 2018. – Barry and Ralph take different approaches to finding the remaining bus metas before DeVoe gets to them. However, Ralph’s cavalier attitude frustrates Barry and the two clash over what it means to be a hero. Meanwhile, Breacher returns to ask Cisco for a favor.

Black Lightning – S01E11 – Black Jesus: The Book of Crucifixion – As suspicions grow that Jefferson Pierce is Black Lightning, the ASA arranges to have him arrested. Lynn seeks help from Detecitve Henderson. Meanwhile, as Jefferson is in custody, Gambi and Anissa work together to show Black Lightning is still running around the streets of Freeland.

Krypton – S01E03 – The Rankless Initiative – (on Syfy) – During a military crackdown on Seg’s home district, Seg and Adam Strange race to find a deadly Sentry.

Arrow – S06E17 – Brothers in Arms – Oliver and Diggle face their biggest challenge yet. Curtis is disappointed to find out his new boyfriend has a firm anti-vigilante stance.