Brooklyn-based immersive theater experts Third Rail Projects returns to the Winter Garden at Brookfield Place for its latest presentation, Oasis. On weekdays from April 1 to 12, the company behind such productions as Then She Fell, Ghost Light, and The Grand Paradise will stage free, specially commissioned pop-up performances in the expansive, palm-tree-lined space as part of Arts Brookfield’s thirtieth anniversary. Designed by architect César Pelli, the Winter Garden, in what was then known as the World Financial Center, opened in 1988 and was rebuilt following the terrorist attacks on 9/11. Oasis is set in the 1980s, as four overworked men and women dream of a better life, imagining the Winter Garden as a respite from all the madness. Conceived, directed, and choreographed by Jennine Willett and performed by Julia Kelly, Madison Krekel, Edward Rice, Jessy Smith, and Ryan Wuestewald, the play will consist of ten ten-minute lunchtime vignettes taking place at noon and 1:00; on April 12 at 7:30, the episodes will be brought together as a full-length experience. Admission is free, and no advance RSVP is necessary.