The paper, through the lens of positioning and agency theories, examines the experiences of being stranded in the home country due to the restricted mobility caused by the COVID-19 pandemic of 10 international doctoral students of different nationalities (Chinese, Vietnamese, Malaysian, and Indian), majoring in different disciplines (Education, Linguistics, Applied linguistics, Economics, Public health, and Civil engineering), and studying in different countries (New Zealand, Australia, and the United States). With an aim to explore the abrupt immobility and its subsequent impacts on the students' learning, the article highlights the challenges that the students had to tackle including the feelings of being in limbo, nostalgia, and detachment, and faced with academic challenges due to the physical distance from the study destination. Accordingly, they had to self-position and reposition themselves and enact different forms of agency to confront the difficulties, including agency for becoming, needs-response agency, and agency as struggle and resistance. The findings highlight how the international PhD students mobilized resources to develop their independence as future researchers, as well as their connection with the academic communities in their home countries in various ways.