Arrowverse

"Worlds Finest" -- Kara gains a new ally when the lightning-fast superhero The Flash suddenly appears from an alternate universe and helps Kara battle Siobhan, aka Silver Banshee (Italia Ricci, right), and Livewire (Brit Morgan, left) in exchange for her help in finding a way to return him home, on SUPERGIRL, Monday, March 28 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Also pictured: Calista Flockhart (center) Photo: Robert Voets/Warner Bros. Entertainment Inc. ÃÂ© 2016 WBEI. All rights reserved.

Supergirl season 6 to bring back fan-favorite character in the most unexpected of ways

Superman and Lois season 1, episode 4 live stream: Watch online

The Flash season 7, episode 3 live stream: Watch online

Ruby Rose reveals if Kate Kane will ever return to Batwoman

Batwoman -- “It’s Best You Stop Digging” -- Image Number: XXX -- Pictured (L-R): Nicole Kang as Mary Hamilton and Javicia Leslie as Ryan Wilder -- Photo: The CW -- © 2021 The CW Network, LLC. All Rights Reserved.

Batwoman season 2, episode 7 review: It’s Best You Stop Digging

Superman & Lois -- "The Perks of Not Being a Wallflower" -- Image Number: SML103a_0005r.jpg -- Pictured (L-R): Alexander Garfin as Jordan Kent and Jordan Elsass as Jonathan Kent -- Photo: Dean Katie Yu/The CW -- © 2021 The CW Network, LLC. All Rights Reserved.

Superman and Lois season 1, episode 3 review: The Perks of Not Being a Wallflower

The Flash -- "The Speed of Thought" -- Image Number: FLA702fg_0005r.jpg -- Pictured: Grant Gustin as The Flash -- Photo: The CW -- © 2021 The CW Network, LLC. All rights reserved

The Flash season 7, episode 2 review: The Speed of Thought

The Flash -- "The Speed of Thought" -- Image Number: FLA702fg_0005r.jpg -- Pictured: Grant Gustin as The Flash -- Photo: The CW -- © 2021 The CW Network, LLC. All rights reserved

The Flash season 7 ending explained: How has [SPOILER] returned from the dead?

Black Lightning -- "The Book of Ruin: Chapter One" -- Image Number: BLK405a_0159r.jpg -- Pictured (L-R): Cress WIlliams as Black Lightning and Christine Adams as Lynn -- Photo: Bob Mahoney/The CW -- © 2021 The CW Network, LLC. All rights reserved.

Black Lightning season 4, episode 5 review: Black Lightning’s back!

Superman & Lois -- "Pilot" -- Image Number: SML101a_0342r2.jpg -- Pictured: Tyler Hoechlin as Clark Kent -- Photo: Dean Buscher/The CW -- © 2021 The CW Network, LLC. All Rights Reserved.

Superman and Lois season 1, episode 3 live stream: Watch online

The Flash -- "The Speed of Thought" -- Image Number: FLA702fg_0005r.jpg -- Pictured: Grant Gustin as The Flash -- Photo: The CW -- © 2021 The CW Network, LLC. All rights reserved

The Flash season 7, episode 2 live stream: Watch online

Superman & Lois -- "Heritage" -- Image Number: SML102d_0009r.jpg -- Pictured (L-R): Bitsie Tulloch as Lois Lane and Adam Rayner as Morgan Edge -- Photo: Dean Buscher/The CW -- © 2021 The CW Network, LLC. All Rights Reserved.

Superman and Lois season 1, episode 2 review: Heritage

The Flash -- "All's Wells That Ends Wells" -- Image Number: FLA701a_0338r.jpg -- Pictured: Tom Cavanagh as Nash Wells -- Photo: Katie Yu/The CW -- © 2021 The CW Network, LLC. All rights reserved

The Flash season 7, episode 1 review: All’s Well That Ends Wells

The Flash -- "The Exorcism of Nash Wells" -- Image Number: FLA615a_0034b.jpg -- Pictured (L-R): Grant Gustin as Barry Allen and Tom Cavanagh as Nash Wells -- Photo: Katie Yu/The CW -- © 2020 The CW Network, LLC. All rights reserved

The Flash season 7 shock exit explained: Is [SPOILER] really dead?

The Flash -- The Last Temptation of Barry Allen, Pt. 2 -- Image Number: FLA608a_0201r.jpg -- Pictured (L-R): Candice Patton as Iris West - Allen and Grant Gustin as The Flash -- Photo: Katie Yu/The CW -- © 2019 The CW Network, LLC. All rights reserved

The Flash just killed off a major DC character in its season 7 premiere

Superman & Lois -- "Pilot" -- Image Number: SML101fg_0001r.jpg -- Pictured: Tyler Hoechlin as Superman -- Photo: The CW -- © 2021 The CW Network, LLC. All Rights Reserved

Superman and Lois renewed: Why The CW gave it an early second season

Black Lightning -- "The Book of Reconstruction: Chapter Three" -- Image Number: BLK403fg_0003r.jpg -- Pictured: Marvin "Krondon" Jones III as Tobias -- Photo: The CW -- © 2021 The CW Network, LLC. All rights reserved.

Black Lightning season 4, episode 4 review: A Light in the Darkness

Superman & Lois -- "Heritage" -- Image Number: SML102b_0348r1.jpg -- Pictured (L-R): Bitsie Tulloch as Lois Lane and Tyler Hoechlin as Clark Kent -- Photo: Dean Buscher/The CW -- © 2021 The CW Network, LLC. All Rights Reserved.

Superman and Lois season 1, episode 2 live stream: Watch online

The Flash -- "All's Wells That Ends Wells" -- Image Number: FLA701a_0366r.jpg -- Pictured: Grant Gustin as Barry Allen -- Photo: Katie Yu/The CW -- © 2021 The CW Network, LLC. All rights reserved

The Flash season 7, episode 1 live stream: Watch premiere online

Melissa Benoist as Supergirl/Kara Danvers in Supergirl season 5, episode 19 "Immortal Kombat" -- Photo: Dean Buscher/The CW

Supergirl season 6 is not coming to The CW in spring 2021

Arrow -- "Spartan" -- Image Number: AR719a_0124b -- Pictured: David Ramsey as John Diggle/Spartan -- Photo: Dean Buscher/The CW -- ÃÂ© 2019 The CW Network, LLC. All Rights Reserved.

John Diggle could become Green Lantern on The Flash season 7

Batwoman -- “Do Not Resuscitate” -- Image Number: BWN206b_0032r -- Pictured: avicia Leslie as Batwoman -- Photo: Katie Yu/The CW -- © 2021 The CW Network, LLC. All Rights Reserved.

Batwoman season 2, episode 6 review: Do Not Resuscitate

Batwoman -- “Do Not Resuscitate” -- Image Number: BWN206b_0032r -- Pictured: avicia Leslie as Batwoman -- Photo: Katie Yu/The CW -- © 2021 The CW Network, LLC. All Rights Reserved.

Batwoman season 2, episode 6 live stream: Watch online

Superman & Lois -- "Pilot" -- Image Number: SML101fg_0001r.jpg -- Pictured: Tyler Hoechlin as Superman -- Photo: The CW -- © 2021 The CW Network, LLC. All Rights Reserved

Superman and Lois season 1, episode 1 review: Pilot

Superman & Lois -- "Pilot" -- Image Number: SML101a_0435r2.jpg -- Pictured (L-R): Bitsie Tulloch as Lois Lane and Tyler Hoechlin as Clark Kent -- Photo: Dean Buscher/The CW -- © 2021 The CW Network, LLC. All Rights Reserved.

Superman and Lois ratings soar in two-hour series premiere on The CW

Black Lightning -- "The Book of Reconstruction: Chapter Three" -- Image Number: BLK403fg_0003r.jpg -- Pictured: Marvin "Krondon" Jones III as Tobias -- Photo: The CW -- © 2021 The CW Network, LLC. All rights reserved.

Black Lightning season 4, episode 3 review: Despite All My Rage

Superman & Lois -- "Pilot" -- Image Number: SML101fg_0007r2_HD.jpg -- Pictured: Tyler Hoechlin as Superman -- Photo: The CW -- © 2021 The CW Network, LLC. All Rights Reserved

Superman and Lois season 1, episode 1 live stream: Watch premiere online

Batwoman -- “Gore on Canvas” -- Image Number: BWN205fg_0055r -- Pictured (L-R): Javicia Leslie as Batwoman -- Photo: The CW -- © 2021 The CW Network, LLC. All Rights Reserved.

Batwoman season 2, episode 5 review: Gore on Canvas