The 2020 outbreak of the global COVID-19 pandemic imposed emergency remote teaching on adult English as a second language (ESL) programs globally, creating unprecedented challenges not only for language learners but also for instructors. Immense difficulties were produced in the collision between a biological hazard (the novel coronavirus) and the power-inflected social structures that organize language teaching in different locales. In this paper I explore some impacts of the pandemic on three instructors in the single largest adult ESL program in Canada, Language Instruction for Newcomers to Canada (LINC). Grounded in an account of the historical origins and development of the LINC program, a reflexive thematic analysis of instructor responses to vignettes of resonant challenges identified three major issues that were intensified by the pandemic: navigating digital inequities, balancing the teaching of digital literacies and language teaching in an accountability framework, and managing boundaries and expectations. These results are contextualized in the larger conversations around LINC and adult ESL programming globally, and some implications and new directions for the post-pandemic landscape now visible on the horizon are also considered.