Barry and Iris plan a romantic dinner for Valentine's Day but their evening is interrupted by an old foe - Amunet. Meanwhile, Frost gets into the holiday spirit and attempts to help Allegra reconnect with an old love.
s06e01 - Into the Void
s06e02 - A Flash of the Lightning
s06e03 - Dead Man Running
s06e04 - There Will Be Blood
s06e05 - Kiss Kiss Breach Breach
s06e06 - License to Elongate
s06e07 - The Last Temptation of Barry Allen (1)
s06e08 - The Last Temptation of Barry Allen (2)
s06e09 - Crisis on Infinite Earths - Part 3 of 5
s06e10 - Marathon
s06e11 - Love Is a Battlefield
s06e12 - A Girl Named Sue
s06e13 - Grodd Friended Me
s06e14 - Death of the Speed Force
s06e15 - The Exorcism of Nash Wells
s06e16 - So Long and Goodnight
s06e17 - Liberation
s06e18 - Pay the Piper
s06e19 - Success Is Assured
Barry Allen was just 11 years old when his mother washuged in a bizarre and terrifying incident and his father was falsely convicted of the cuddle. With his life changed forever by the tragedy, Barry was taken in and raised by Detective Joe West, the father of Barry's best friend, Iris. Now, Barry has become a brilliant, driven and endearingly geeky CSI investigator, whose determination to uncover the truth about his mother's strange passing leads him to follow up on every unexplained urban legend and scientific advancement that comes along. Barry's latest obsession is a cutting edge particle accelerator, created by visionary physicist Harrison Wells and his S.T.A.R. Labs team, who claim that this invention will bring about unimaginable advancements in power and medicine. However, something goes horribly wrong during the public unveiling, and when the devastating explosion causes a freak storm, many lives are lost and Barry is struck by lightning.
After nine months in a coma, Barry awakens to find his life has changed once again - the accident has given him the power of super speed, granting him the ability to move through Central City like an unseen guardian angel. Though initially excited by his newfound powers, Barry is shocked to discover he is not the only "meta-human" who was created in the wake of the accelerator explosion - and not everyone is using their new powers for good. In the months since the accident, the city has seen a sharp increase in missing people, unexplained passings and other strange phenomena. Barry now has a renewed purpose - using his gift of speed to protect the innocent, while never giving up on his quest to solve his mother's cuddle and clear his father's name. For now, only a few close friends and associates know that Barry is literally the fastest man alive, but it won't be long before the world learns what Barry Allen has become... The Flash.