Story lines are weaker than previous seasons...
“The Flash: The Complete Third Season” opens with forensic scientist Barry Allen, aka, The Flash (Grant Gustin), living his dream life. His parents are alive. He’s dating beautiful, smart Iris West (Candice Patton). And he’s able to stand back and let the new speedster in town, Kid Flash (Keiynan Lonsdale), step in to protect Central City. But the better Barry’s life gets, the more dangerous it becomes. His nemesis, Reverse Flash (Tom Cavanagh), warns Barry of serious repercussions if he remains in the alternate Flashpoint universe. In addition to memory loss, his powers will fade. When disaster strikes, Barry must decide whether to continue life as Barry Allen or return to his universe as The Flash. As Barry deals with his identity crisis, he and the S.T.A.R. Labs team fight off lethal threats from the God of Speed, Savitar (Andre Tricoteux).<br /><br />“The Flash” is based on the DC Comics character, a costumed superhero crime fighter with the power to move at superhuman speeds. The series follows Barry Allen, the Flash’s secret identity, a crime scene investigator who uses his incredible speed to fight criminals, including others who have gained superhuman abilities. “The Flash” was spun off from another DC Comics show, “Arrow,” and premiered on October 7, 2014. The pilot became the second most watched premiere in the history of the CW Network.<br /><br />Season Three starts with the exciting episode “Flashpoint,” in which Barry teams up with Wally West/Kid Flash, but Wally is badly injured while the duo do battle with Wally’s nemesis, Edward Clariss. The timeline is reset and Barry’s memories are restored, but back in the present, Barry discovers that the timeline didn’t reset properly, causing new problems. As a whole, Season Three isn’t as sharply scripted as the first two seasons. The writers have put Barry Allen into bad situations of his own making, which brings up questions about his intelligence. It’s interesting to portray a superhero as less than perfect, but when a lead character repeatedly makes bad decisions, he seems unworthy of the amazing power fate has bestowed on him.<br /><br />Bonus materials on the 4-disc widescreen Blu-ray release include 10 behind-the-scenes featurettes, deleted scenes, gag reel, and a conversation with writers Andrew Kreisberg and Kevin Smith. A digital copy is enclosed.
The movie title "The Flash: The Complete Third Season [Blu-ray]," available on Movies & TV, has received an average rating of 4.7 from 2359 reviewers. 
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This title falls under the categories of Movies & TV, Featured Categories, Blu-ray and Action & Adventure. 
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 {"Genre": "Action & Adventure", "Format": "Blu-ray, NTSC", "Contributor": "Greg Berlanti, Carlos Valdes, Danielle Panabaker, Aaron Helbing, Sarah Schechter, Grant Gustin, Tom Cavanagh, Todd Helbing, Tom Felton, Candice Patton, Andrew Kreisberg, Keiynan Lonsdale, Jesse L. MartinGreg Berlanti, Carlos Valdes, Danielle Panabaker, Aaron Helbing, Sarah Schechter, Grant Gustin, Tom Cavanagh, Todd Helbing, Tom Felton, Candice Patton, Andrew Kreisberg, Keiynan Lonsdale, Jesse L. Martin   See more", "Number Of Discs": "4", "Runtime": "16 hours and 52 minutes", "Is Discontinued By Manufacturer": "No", "Product Dimensions": "0.7 x 7.5 x 5.4 inches; 5.6 Ounces", "Item model number": "B01LTHMWTE", "Media Format": "Blu-ray, NTSC", "Run time": "16 hours and 52 minutes", "Release date": "September 5, 2017", "Actors": "Grant Gustin, Candice Patton, Danielle Panabaker, Carlos Valdes, Keiynan Lonsdale", "Producers": "Greg Berlanti, Andrew Kreisberg, Aaron Helbing, Todd Helbing, Sarah Schechter", "Language": "English (Dolby Digital 5.1)", "Studio": "Studio Distribution Services", "Country of Origin": "USA", "Number of discs": "4"}

Here is a brief synopsis of the title : Flash, The: S3 (BD).