A Prime Video documentary follows former Little Mix member Jesy Nelson as she documents her life after leaving the band, including the birth of her premature twins. Seven months into filming, the project takes an unforeseen turn when her daughters Ocean and Story are diagnosed with spinal muscular atrophy (SMA), a life-threatening genetic condition affecting muscle strength. The review notes that had screening detected SMA at birth through gene therapy, the progression could have been halted; instead, the twins face muscle wasting that will likely require mobility and breathing assistance.

Rather than abandon the project, Nelson uses the documentary platform to campaign for including SMA screening in standard UK newborn testing, having been appointed as a patron of SMA UK. The review highlights intimate family moments, particularly Nelson's relationship with her mother who becomes primary caregiver, as the emotional core of the film. The reviewer presents Nelson's decision to share this deeply personal crisis publicly as purposeful, justified by her advocacy efforts to raise awareness about a condition that currently goes undetected in newborn screening.