Informed by narrative inquiry, this chapter makes a unique contribution to the theorizing of focus groups. It uses empirical data from research into perceptions of physically active older adults across the life course to critically examine the work that stories can do within a focus group setting. According to Frank (2010), the work of stories is to animate human life by working with people, for people, and always on people. Conceptualizing stories as active social interactions, which are heard and responded to, calls for a new way to collect, share, think about and study them. This approach, which Frank terms socio-narratology, aims to understand what the story does, rather than understand the story as a portal into the mind of the storyteller. Our chapter reports on the analysis of group meetings, which were undertaken with a total of twelve naturally occurring groups representing different stages of the life course. The focus group meetings involved sharing a range of visual material (photography and film), which represented the lived experiences of physical activity amongst a group of older adults. The stories conveyed through these visual stimuli worked with, for, and on the focus group participants, eliciting a range of responses that were imbued with stereotypes, contradictions and episodes of reflexivity. The value of adopting a socio-narratology approach to theorize focus groups, along with the innovative use of various visual data to examine ‘narratives at work’ is discussed.