First, I know DCAMU movies don't exactly tell us which year or month the story is happening in so I had to search it and I successfuly figured it's timeline so here it is with Batman: Under the Red Hood movie added in it:

Movies in realease date (USA)(DCAMU) :

Justice League War
SON of Batman
Justice League Throne of Atlantis
Batman VS Robin
Batman BAD Blood
Justice League VS Teen titans
Justice League Dark
Teen titans: The Judas Contract
Suicede Squad: Hell to play
The Death of Superman
Constatine City of the Demons
Reign of the Supermen
Batman Hush
Wonder Woman Bloodliness
Justice League Dark Apokolips War

Movies timeline

2010 -
[Prologue] Teen Titans: The Judas Contract { this is acutaly in 2011 but i had to move it}

Reader became 2nd Robin and joined early Teen Titans 4 months later

2011 -
Reader dies in Bosnia

2012 -
[Flashback] Batman: Bad Blood

2013 -
Late 2013(November) - Justice League War

September - SON of Batman

Late 2013(November - [Prologue] Wonder Woman: Bloodlines

November- Justice League: Throne of Atlantis

2014 -
Febuary, March - Batman VS Robin

June - Batman: Under the Red Hood

September - Batman BAD Blood

2015 -
April - Justice League VS Teen titans

October - Suicede Squad: Hell to pay

Late 2015 (November) - Justice League Dark

2016 -
April - Teen titans: The Judas Contract

2017 -
In this year nothing happens so I think I can think of something to make the book longer (I'm open to suggestions too)

2018 -
March - The Death of the Superman

September - Reign of the Superman

October, November - Constatine: The City of Demons

November - Batman: Hush

November - Wonder Woman: Bloodlines

November, December - [Prologue] Justice League Dark Apokalips War

2020 -
November - Justice League Dark Apokalips War

Now we can start:

Even Batman couldn't save him from the hands of the Joker. Y/N Todd aka 2nd Robin died in Bosnia. But did he?

Now, 3 years later, he's back with only one goal: to kill the Joker. Can Batman save his former partner, but most importantly, his (adoptive) son.

>This movie takes place couple of months after events of Batman VS Robin, in 2014

"You wanna rule them by fear. But what do you do with ones who aren't afraid? I'm doing what you won't, I'm taking them out." - Y/N "Red Hood" L/N

"It was stupid and careless. Body was made of high-end latex. If I'd bothered to look inside when I brought him home - - Stupid and careless." - Batman

"That's impressive." - Nightwing

"I want this man dead, I mean seriously dead. Beaten, broken.
"His head mounted on my wall" kind of dead!" - Black Mask

"Oh, Bird Boy, you're so much less fun now. All grown up and in your big-boy pants. Still, better off than his replacement, right?" - The Joker

"Master Bruce got almost three hours sleep in the last two days. True busman's holiday." - Alfred

"Bruce, you remember when my father last became embattled with you before his death?" - Talia

"We'll find Y/N... together." - Superman

"I reduced the injury to minor fracture, but you still gonna need that cast for 2-3 days, Nightwing." - Raven

If you didn't vote for what should be cover for this book or do I add Feamale OC for Damian to be his Love Intrest, you have time until prologue is realesed, bye