The heartrending hook behind “Unsung Hero” isn’t solely discovering how one tight knit family birthed two chart-topping contemporary Christian musical acts, although that is an interesting draw. It’s not necessarily learning how the Aussie expats survived a slew of hardships through togetherness and fortitude. The fascinating angle it adopts is similar to the way Steven Spielberg explored a tumultuous time in his childhood with “The Fablemans,” as Joel Smallbone (who co-wrote and directed with Richard L. Ramsey) also engages with family history, portraying his father grappling with financial and personal crises. The co-directors re-contextualize character-building circumstances, crafting a soul-stirring testament to the power of family and faith in the process.

David Smallbone (Joel Smallbone) is at the top of his game in early 1991. He’s got a great support system at work as one of Australia’s top Christian artist concert promoters, luring in such performers as the heavy metal hair band Stryper. His home life is also thriving, thanks to the efforts of his dedicated, loving wife Helen (Daisy Betts) and their burgeoning brood: Rebecca (Kirrilee Berger), Daniel (Paul Luke Bonenfant), Ben (Tenz McCall), Joel (Diesel La Torraca), Luke (JJ Pantano) and Josh (Angus K. Caldwell). His hard work has given them life’s luxuries, like fancy cars, a sprawling mansion and private schools for his kids. Yet their mettle is about to be tested.

After David fails to sell out an Amy Grant concert due in part to a devastating nationwide recession, he loses all their savings. His backup plan to bring Eddie DeGarmo (Jonathan Jackson) over from the States also vanishes overnight. With no other career options, and with another baby on the way, he comes up with a risky proposal: move the family to the U.S. in hopes of representing an artist friend of his in Nashville. Their journey is fraught with obstacles, from a stressful customs detention to the psychological toll of David’s struggles as a provider. While the Smallbones suck up their pride to courageously face dire situations, they’re only human and there’s always a breaking point — one they must work together to mend.

Smallbone, both behind and in front of the camera, delicately textures his hero, giving him a rich internality. The title seemingly refers to David’s arc of learning humility and acceptance from these pressure-filled tribulations. However, it also applies to the Smallbone matriarch, as the story explores motherhood through this specific lens, such that Helen carries equal thematic importance to her husband. The sequences that show her rising to heartbreaking challenges, spinning sad situations into whimsical adventures for everyone’s benefit (including her own, as a coping mechanism), speak to a classically constructed heroine filled with gumption, sacrifice and humanity. Betts’ understated performance leans into these characteristics as she channels strength and highlights hidden facets deep in the material.