When the turtles were 12 Donnie had a gambling problem, and once he gambled Raph he thought he was going to win but he didn't.
4 years later
Master Splinter is going to Japan from a year and they just bought their 14th new maid
Leo and Raph get hurt and Mikey Donnie April Casey and master splinter care for them and some sad parts are in here but nothing to make you cry
UPDATE 2022: okay so upon further examination and countless comments stating otherwise. This will most likely make you cry, sorry for underestimating my ability to make a sob story 😅