Naturally, Zach isn't the only person who's affected by his diagnosis. His parents and three siblings are heartbroken as well. Viewers see how having a child who is terminally ill can put a strain on a marriage, as several arguments crop up between his mother, Laura (Neve Campbell) and his dad, Rob (Tom Everett Scott). Although there aren't any full-blown screaming matches, their disagreements combined with his siblings' realisation that they're losing their brother shows how raw emotions can be.
Additionally, Zach's condition has a big impact on his community. In the beginning of the movie, the school principal Mr. Weaver (Lil Rel Howery) mentions to Zach that he shaved his head in his honour. Additionally, there are a handful of scenes that show his schoolmates coming together to support Zach in his final days.