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The Flash -- "The Trap" -- Image FLA120A_0064 -- Pictured: Grant Gustin as Barry Allen -- Photo: Dean Buscher/The CW -- © 2015 The CW Network, LLC. All rights reserved

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The Flash -- "The Trap" -- Image FLA120A_0124 -- Pictured: Jesse L. Martin as Detective Joe West -- Photo: Dean Buscher/The CW -- © 2015 The CW Network, LLC. All rights reserved

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The Flash -- "The Trap" -- Image FLA120A_0143 -- Pictured: Candice Patton as Iris West -- Photo: Dean Buscher/The CW -- © 2015 The CW Network, LLC. All rights reserved

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The Flash -- "The Trap" -- Image FLA120A_0156 -- Pictured: Grant Gustin as Barry Allen -- Photo: Dean Buscher/The CW -- © 2015 The CW Network, LLC. All rights reserved

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The Flash -- "The Trap" -- Image FLA120A_0260 -- Pictured: Carlos Valdes as Cisco Ramon -- Photo: Dean Buscher/The CW -- © 2015 The CW Network, LLC. All rights reserved

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The Flash -- "The Trap" -- Image FLA120A_0313 -- Pictured (L-R): Danielle Panabaker as Caitlin Snow, Grant Gustin as Barry Allen and Carlos Valdes as Cisco Ramon -- Photo: Dean Buscher/The CW -- © 2015 The CW Network, LLC. All rights reserved

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The Flash -- "The Trap" -- Image FLA120B_0011 -- Pictured: Carlos Valdes as Cisco Ramon -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All rights reserved

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The Flash -- "The Trap" -- Image FLA120B_0020 -- Pictured (L-R): Grant Gustin as Barry Allen, Rick Cosnett as Detective Eddie Thawne, and Danielle Panabaker as Caitlin Snow -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All rights reserved

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The Flash -- "The Trap" -- Image FLA120B_0030 -- Pictured: Grant Gustin as Barry Allen -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All rights reserved

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The Flash -- "The Trap" -- Image FLA120B_0043 -- Pictured: Carlos Valdes as Cisco Ramon -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All rights reserved

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The Flash -- "The Trap" -- Image FLA120B_0068 -- Pictured (L-R): Danielle Panabaker as Caitlin Snow, Rick Cosnett as Detective Eddie Thawne, Jesse L. Martin as Detective Joe West, Grant Gustin as Barry Allen, and Carlos Valdes as Cisco Ramon -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All rights reserved

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The Flash -- "The Trap" -- Image FLA120B_0095 -- Pictured: Grant Gustin as Barry Allen -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All rights reserved

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The Flash -- "The Trap" -- Image FLA120B_0116 -- Pictured (L-R): Rick Cosnett as Detective Eddie Thawne and Jesse L. Martin as Detective Joe West -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All rights reserved

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The Flash -- "The Trap" -- Image FLA120B_0130 -- Pictured: Rick Cosnett as Detective Eddie Thawne -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All rights reserved

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The Flash -- "The Trap" -- Image FLA120B_0149 -- Pictured (L-R): Carlos Valdes as Cisco Ramon and Grant Gustin as Barry Allen -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All rights reserved

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The Flash -- "The Trap" -- Image FLA120B_0298 -- Pictured (L-R): Grant Gustin as Barry Allen, Carlos Valdes as Cisco Ramon, Danielle Panabaker as Caitlin Snow -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All rights reserved

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The Flash -- "The Trap" -- Image FLA120B_0445 -- Pictured (L-R): Carlos Valdes as Cisco Ramon and Tom Cavanagh as Harrison Wells -- Photo: Cate Cameron/The CW -- © 2015 The CW Network, LLC. All rights reserved