In 2001, high school student Teddy Walker drops out when he cannot concentrate during a crucial test. 17 years later in 2018, Teddy sells barbecue grills while dating a wealthy woman named Lisa; a careful financial strategy makes him appear wealthier than he actually is. However, his life falls apart just as he learns that he is going to inherit control of the store when the current manager retires. Proposing to Lisa in the shop, Teddy accidentally triggers an explosion when a champagne cork pops open a gas tank. The manager takes the insurance from the explosion and promptly moves to Florida. Now jobless, Teddy learns from his best friend Marvin that he could theoretically get a job at his financial investment firm, but only if he has a
GED. Teddy goes to his old high school, intending to charm the new principal into giving him the relevant qualification only to discover the principal is Stewart, who Teddy bullied when he was at school. Fortunately, Teddy can enroll in night school that semester, taught by the unorthodox Carrie, but finds himself still frustrated by his old concentration issues. At the same time, he tells Lisa he already has the job working for Marvin, while secretly working at a local fast food restaurant to give himself some income. As the class struggles to cope, Teddy convinces them to help steal the test answers. When Carrie realizes what happened, he is expelled after taking the blame. He returns to make a genuine appeal to Carrie that he wants to do better. He is allowed back if he gets tested for learning disabilities. They determine that he has
dyslexia,
dyscalculia, and various processing issues. She is able to devise new systems to help him cope and he soon settles into night school while genuinely befriending his classmates. As the last class is on prom night, Teddy suggests they attend too. He is confronted by Lisa who Stewart brought to the school that night under the pretense of corporate sponsorship to improve the school. Hurt that Teddy was lying to her, Lisa breaks up with him, prompting Teddy to give up on night school and the GED. Following the incident, Teddy is visited by Carrie and Stewart with the latter apologizing to Teddy, realizing he crossed a line. Carrie convinces him to return for the GED. Although he does not pass with his classmates, he continues to persevere and completes it on his fifth attempt. At graduation, Teddy makes a speech for the night school students about how they all prove that second chances are possible, witnessed by Lisa. Afterwards, Teddy apologizes to her for lying, re-introducing himself. He asks her out, and she agrees to support him financially while he seeks work. Before the credits, a party is held after graduation. Stewart interrupts the party, proclaiming that it is "his house" before pulling off some epic dance moves to prove it. ==Cast==