Addressing childhood obesity risk factors like home environment, parental roles, excess weight, physical activity, and healthy eating among Latinos/Hispanic (L/H) families living in rural communities is an important priority. This study proposes to use cultural adaptation and implementation science frameworks to evaluate the feasibility of delivering a culturally appropriate family-based childhood obesity (FBCO) program via an automated telephone system (IVR) to L/H families living in rural Nebraska. We will conduct a mixed-methods feasibility trial for L/H families with overweight or obese children. In Aim 1, we will first collaboratively adapt all intervention materials to better fit the rural L/H community profile, including translation of materials to Spanish, inclusion of culturally relevant content and images, and use of health communication strategies to address different levels of health literacy. Then, we will evaluate the cultural relevance, suitability, and usability of the adapted intervention materials and mode of delivery. In Aim 2, we will randomly assign participant dyads (parent and child) to either Family Connections (n=29) or a waitlist standard-care group (n=29) and determine overall study reach, preliminary effectiveness in reducing child BMI z- scores, potential for program adoption, implementation, and sustainability through local health departments (RE-AIM outcomes). We will also evaluate health department perceptions of i-PARIHS constructs (innovation, context, recipient characteristics), and Family Connections participants' view of the intervention (i.e., relative advantage, observability, trialability, complexity, compatibility). In conclusion, the study will answer three important questions: (1) Is a telephone delivered FBCO program in rural Nebraska culturally relevant, usable and acceptable by L/H families? (2) Is a telephone delivered FBCO program effective at reducing BMI z-scores in L/H children living in rural Nebraska? and (3) What real-world institutional and contextual factors influence the impact of the intervention and might affect its potential ability to sustainably engage a meaningful population of L/H families who stand to benefit? This project will generate locally and globally relevant evidence on a culturally appropriate technology-delivered FBCO intervention for L/H families in rural communities.