Overview: A wide field pure-parallel survey of emission-line galaxies spanning a wide range of cosmic time. With up to 600 hours of parallel JWST/NIRISS observations in Cycle 1, PASSAGE will spectroscopically discover many dozens of the brightest Ly-alpha line emitters in the reionization epoch, and also detect Ly-break galaxies independent of their Ly-alpha lines. This will provide the first unbiased determination of the EW(Ly-a) distribution, and potentially evidence for ionized bubbles. PASSAGE will also obtain stellar abundances in bright galaxies, and a census of brown dwarfs deep into the Galactic halo.