‘The Flash’ Season 3 Episode 17 Preview: Duet Photos and Trailer

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The Flash season 3 episode 17

Grant Gustin as Barry Allen and Melissa Benoist as Kara in ‘The Flash’ season 3 episode 17 (Photo: Jack Rowand © 2017 The CW Network)

The Supergirl/The Flash musical cross-over finally arrives with season three’s episode 17 airing March 21, 2017. Supergirl (Melissa Benoist) and her friends turn to Barry and Team Flash for help when the Music Meister (Glee‘s Darren Criss) attacks Kara. Dermott Downs directed the episode from a script by Aaron Helbing and Todd Helbing (story by Greg Berlanti and Andrew Kreisberg).


The season three cast includes Grant Gustin as Barry Allen/The Flash, Tom Cavanagh as Harrison Wells, Danielle Panabaker as Caitlin Snow, Carlos Valdes as Cisco, Jesse L Martin as Joe West, Keiynan Lonsdale as Wally West, and Tom Felton as Julian.

The ‘Duet’ Plot: DARREN CRISS GUEST STARS AS THE MUSIC MEISTER IN THE FLASH AND SUPERGIRL MUSICAL CROSSOVER – Barry (Gustin) and team are surprised when Mon-El (guest star Chris Wood) and Hank Henshaw (guest star David Harewood) arrive on their Earth carrying a comatose Supergirl (Benoist) who was whammied by the Music Meister (Criss). Unable to wake her up, they turn to Team Flash to save her. However, the Music Meister surprises The Flash and puts him in a similar coma, one that Team Flash can’t cure. Kara and Barry wake up without their powers in an alternate reality where life is like a musical and the only way to escape is by following the script, complete with singing and dancing, to the end.


The Flash season 3 episode 17

Candice Patton as Iris West, Victor Garber as Professor Martin Stein and Jesse L. Martin as Detective Joe West (Photo: Jack Rowand © 2017 The CW Network)

The Flash season 3 episode 17

Melissa Benoist as Kara, Grant Gustin as Barry Allen and Darren Criss as Music Meister (Photo: Jack Rowand © 2017 The CW Network)

The Flash season 3 episode 17

Darren Criss as Music Meister and Jeremy Jordan as Winn Schott (Photo: Jack Rowand © 2017 The CW Network)

The Flash season 3 episode 17

Grant Gustin as Barry Allen and Melissa Benoist as Kara (Photo: Jack Rowand © 2017 The CW Network)

The Flash season 3 episode 17

Chris Wood as Mike, Melissa Benoist as Kara/Supergirl and David Harewood as Hank Henshaw (Photo: Katie Yu © 2017 The CW Network)

The Flash season 3 episode 17

Carlos Valdes as Cisco Ramon, Grant Gustin as Barry Allen, Candice Patton as Iris West, Tom Cavanagh as Harrison Wells, Chris Wood as Mike, Melissa Benoist as Kara/Supergirl, Danielle Panabaker as Caitlin Snow, and David Harewood as Hank Henshaw (Photo: Katie Yu © 2017 The CW Network)




Rebecca Murray

Rebecca Murray

Editor in Chief at Showbiz Junkies
Journalist covering the entertainment industry for 19+ years, including 13 years as the first writer for About.com's Hollywood Movies site. Member of the Broadcast Television Journalists Association, Broadcast Film Critics Association, Alliance of Women Film Journalists, and President of the San Diego Film Critics Society.
Rebecca Murray
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