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Browse every episode on Last Song Only, with lead songs and show links.
S4 · E23 · The Flash
We Are the Flash
With Marlize's help, Barry tries to make a last-ditch attempt to reach the good DeVoe inside of the Thinker... and meets an old friend.
0 songs · Lead song: Soundtrack update
S4 · E22 · The Flash
Think Fast
Thinker gathers the final component in his master plan, and to stop him Barry must train Cisco and Caitlin how to function in Flash Time. However, he refuses to endanger more of his friends. Meanwhile, Harry has an idea as to where they can find Marlize, and Cecile's pregnancy has strange side effects on her telepathy.
0 songs · Lead song: Soundtrack update
S4 · E22 · Gotham
A Dark Knight: No Man's Land
Ra's and Jeremiah join forces to destroy Gotham and recreate Bruce. Meanwhile, Jim faces off with the military when the mayor orders Gotham's evacuation, and Strange finds a cure for Butch.
0 songs · Lead song: Soundtrack update
S4 · E21 · The Flash
Harry and the Harrisons
When they need an organic weapon to use against Thinker, Team Flash turns to Amunet... but Caitlin has an ulterior motive. Meanwhile, Cisco forms a "Council of Harrisons" after the Council of Wells kicks Harry out of the group.
0 songs · Lead song: Soundtrack update
S4 · E21 · Gotham
A Dark Knight: One Bad Day
Jeremiah carries out his plan to destroy Gotham, while Lee and Riddler find Jim and tend to his injuries. Meanwhile, Oswald senses an opportunity and convinces Barbara and Tabitha to help him.
0 songs · Lead song: Soundtrack update
S4 · E20 · Gotham
A Dark Knight: That Old Corpse
Jerome sends his followers a message from beyond the grave, and they hold a wake in the GCPD. Meanwhile, Jeremiah shows Bruce his new "clean" generator, and Butch grows impatient with Oswald's failure to find him a cure for his condition.
0 songs · Lead song: Soundtrack update
S4 · E20 · The Flash
Therefore She Is
Thinker continues with his "Enlightenment", and Gypsy joins Team Flash to try and stop him... and to discuss her relationship with Cisco.
0 songs · Lead song: Soundtrack update
S4 · E19 · Gotham
A Dark Knight: To Our Deaths and Beyond
The League uses Bruce's blood to bring Ra's back to life. Meanwhile, Oswald advises Riddler to turn against Lee, who is giving the money from the bank robberies to the people of the Narrows.
0 songs · Lead song: Soundtrack update
S4 · E19 · The Flash
Fury Rogue
While Harry discovers the results of the Thinking Cap overload on his mind, the rest of the team call on a former ally to help them transport Fallout away from Thinker.
0 songs · Lead song: Soundtrack update
S4 · E18 · The Flash
Lose Yourself
Team Flash tracks down the last bus meta, Edwin Guass, and discover that he holds the key to defeating Thinker. Meanwhile, Ralph considers taking extreme measures against Thinker,
0 songs · Lead song: Soundtrack update
S4 · E18 · Gotham
A Dark Knight: That's Entertainment
Jerome plans his revenge against Gotham, and lies further plans in case of his death. Meanwhile, Barbara and Tabitha come to a parting of the ways, and Alfred helps Bruce celebrate his birthday.
0 songs · Lead song: Soundtrack update
S4 · E17 · The Flash
Null and Annoyed
The Mechanic discovers what Thinker has been doing to her, and Breacher comes asking Cisco for help. Meanwhile, Team Flash goes after Subject 11, who can control gravity, and Barry questions if Ralph takes anything seriously.
0 songs · Lead song: Soundtrack update
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