cast
Grant Gustin as Barry Allen/The Flash
Candice Patton as Iris West
Danielle Panabaker as Caitlin Snow
Carlos Valdes as Cisco Ramon
Keiynan Lonsdale as Wally West
with Tom Cavanagh as Harrison Wells
and Jesse L. Martin as Joe West
guest starring
Teddy Sears as Jay Garrick/Hunter Zolomon/Zoom
Shantel VanSanten as Patty Spivot
Violette Beane as Jessie Wells
and John Wesley Shipp as Henry Allen
Melanjutkan cliffhanger musim lalu, dimana dalam usaha Flash mengalahkan Reverse-Flash, singularity (black hole) tercipta di atas langit. Flash berusaha menutup singularity, tapi ga bisa sendiri. Firestorm membantu dan berhasil menghentikan singularity, tapi hanya Professor Stein yg selamat, sementara Ronnie lenyap, mengorbankan dirinya. Setelahnya, Barry menutup diri, dan menjalankan perannya sebagai Flash tanpa bantuan teman-temannya.
