The Blind Side (film) - Wikipedia

17-year-old Michael "Big Mike" Oher has been in foster care with different families in Tennessee, due to his biological mother's drug addiction, but every time he is placed in a new home, he runs back to her. His friend's father, on whose couch Michael has been sleeping, asks Burt Cotton, the football coach of Wingate Christian School, to help get his son and Michael enrolled. Impressed by Mike's size and athleticism, Cotton gets him admitted despite his poor academic record. Michael is befriended by a younger student named Sean Tuohy Jr. ("SJ"). SJ's mother, Leigh Anne, is a strong-minded interior designer and the wife of wealthy businessman Sean Sr.

The school staff tells Michael that his father has died, apparently due to an accident. Later, Leigh Anne and Sean watch their daughter Collins playing volleyball. After the game, Sean notices Michael picking up food discarded on the bleachers. On the eve of Thanksgiving, Leigh Anne notices Michael walking alone on the road, shivering in the cold without adequate clothing. When she learns that he plans to spend the night huddled outside the closed school gym, Leigh Anne offers to let him sleep on the couch in the Tuohy home.

The next morning, Leigh Anne notices that Michael has left. Seeing him walking away, she asks him to spend the Thanksgiving holiday with her family. Later, Leigh Anne drives Michael to his biological mother's house. He sees an eviction notice posted on the door, indicating that his mother is gone. Slowly, Michael becomes a member of the Tuohy family; Leigh Anne's friends question this and suggest that Collins might not be safe around him, but Leigh Anne criticizes them. She later asks Collins how she feels about it. Collins replies that they cannot just throw Michael out. When Leigh Anne seeks to become Michael's legal guardian, she learns he was taken from his drug-addict mother when he was seven and that no one knows her whereabouts. She is also told that, although he scored poorly in a career aptitude test, he ranked in the 98th percentile in "protective instincts". Michael eventually improves his grades enough that he can play football at school. However, Michael appears to be hesitant to use his strength and size while practicing, Leigh Anne tells him, as an offensive lineman, he must protect his quarterback. From that moment, Michael improves dramatically, well enough to play at the college level. However, to do that, he must meet the minimum grade point average to get in so the Tuohys hire a private tutor for him, the outspoken and kind Miss Sue.

Leigh Anne has a face-to-face conversation with Michael's mother Denise about adopting him. Although she seems unresponsive in the beginning, Denise finally wishes Michael the best. Michael is heavily recruited by many prestigious schools. SJ talks to coaches and negotiates on both Michael's behalf and his own. When Michael gets his grades high enough, he decides to attend the University of Mississippi (known colloquially as "Ole Miss"). But as Ole Miss was where Sean Sr. had played basketball, Leigh Anne had been a cheerleader, and Miss Sue had been as well, NCAA investigator Granger is tasked to look into the matter to determine if the Tuohys took him in and unduly influenced him just so he would play for their alma mater.

Michael runs away before the interview is over and confronts Leigh Anne about her motives for taking him in. He then proceeds to find his biological mother Denise in Hurt Village. A gang leader welcomes him back, offers him a beer, and makes sexually offensive insinuations about Leigh Anne and Collins. When Michael gets angry, the gang leader threatens to go after them, and as a result, Michael battles with him and others. After thinking things over and questioning Leigh Anne, Michael tells Granger he chose Ole Miss because "it's where my family goes to school". Michael is accepted into college and says his farewells to the Tuohy family.

The film ends with information about and photos of the real Tuohy family and Michael Oher. He was drafted by the Baltimore Ravens in the first round of the 2009 NFL draft and played in the National Football League.