This box set contains all episodes from the fourth season of the hit CW drama following crime scene investigator Barry Allen, who uses his superhuman abilities to fight others like him who are using their powers for evil.
5 all-new featurettes - Inside the crossover: crisis on Earth-X
All 4 epic super hero crossover episodes with Arrow, DC's Legneds of Tomorrow and Supergirl
Flash time on amunet black with Katee, Eric and Sterling
The Best of DC TV's Comic-Con panels San Diego 2017