A seemingly bright and mostly innocent 16-year-old named Mo attempts to navigate high school under the guidance of his best friend Zeke, an unmotivated-yet-charismatic college dropout. Although Zeke genuinely cares about Mo, things start to go awry as he teaches Mo nontraditional life lessons in drug dealing, partying, and dating. Meanwhile, Mo’s well-meaning dad tries to step in and take back the reins of his son’s upbringing.

Scott has been a case of arrested development ever since his firefighter father died when he was seven. He's now reached his mid-20s having achieved little, chasing a dream of becoming a tattoo artist that seems far out of reach. As his ambitious younger sister heads off to college, Scott is still living with his exhausted ER nurse mother and spends his days smoking weed, hanging with the guys — Oscar, Igor and Richie — and secretly hooking up with his childhood friend Kelsey. But when his mother starts dating a loudmouth firefighter named Ray, it sets off a chain of events that will force Scott to grapple with his grief and take his first tentative steps toward moving forward in life.