To assist teachers in fostering students' global citizenship dispositions through service experiences, this article reports findings from a case study that investigated one high school's global service club and its impact on former club members' global awareness and global citizenship dispositions. Data were collected from Web-based documents and interviews with the faculty advisor and four former members. Data were analyzed by using the constant comparison method to elicit the following findings: (1) fundraising and awareness campaigns, when connected to a larger global service network, can act as viable local actions to combat global poverty; (2) club involvement can produce adults who feel more globally aware, but who do not necessary display critical understandings of global issues; and (3) club involvement can have a positive impact on global citizenship dispositions as participants reported feelings of empowerment and personal/social responsibility, yet no former club members continued participation in global service initiates as adults. Findings suggest the need for structural support when establishing high school global service clubs and, to optimize critical justice aims, local service actions should be tied to a more formal global citizenship curriculum.