The second half of The Seven Deadly Sins: Grudge of Edinburgh. 

Reunited with Lancelot for the first time since their tragic accident, Tristan must learn to conquer his inner demons in order to save his mother's life. 

(Source: Netflix)

14 years since the Kingdom of Liones defeated the Demon Clan and brought peace to the land, Prince Tristan is tormented by his inability to control two great powers: the Demon Clan power of his father, Meliodas, who served as captain of the Seven Deadly Sins as the Dragon Sin of Wrath, and the Goddess Clan power of his mother, Elizabeth. When Elizabeth’s life is threatened, Tristan flees the kingdom and heads toward Edinburgh, where Deathpierce — who was once a member of group of the kingdom’s Holy Knights, the Pleiades of the Azure Sky — maintains his castle. But what are Deathpierce’s intentions? 
 
The wheel of fate begins to move and sweeps up even The Seven Deadly Sins… 
 
(Source: Netflix)

The movie features an original story that takes place during the three months between the first manga and its currently running sequel.
 
Inspired by his tennis champion father, Ryoma is determined to take his game to the next level and train in the US. But in the middle of an intense tennis battle to save his classmate Sakuno from dangerous villains, they somehow find themselves transported back to the past, just as Ryoma’s father is about to undertake his final championship match at the US Open – when he was mysteriously forced to retire. Sing, Dance, and Play along with the innovative 3D digital animation that brings the magnificent and colorful world of The Prince of Tennis to life on the big screen. 

(Sources: Natalie, Crunchyroll, edited)

The Monk Studios