  A major scientific goal of JWST is to probe the epoch of re-ionization of the
Universe at z above 6, and up to 20 and beyond. At these redshifts, galaxies
are just beginning to form and the observable objects are early black holes,
supernovae, and cosmic infrared background. The JWST has the necessary
sensitivity to observe these targets individually, but a public deep and wide
science enabling survey in the wavelength range from 2-5 $\mu$m is needed to
discover these black holes and supernovae and to cover the area large enough
for cosmic infrared background to be reliably studied. This enabling survey
will also discover a large number of other transients and enable sciences such
as supernova cosmology up to z $\sim$ 5, star formation history at high
redshift through supernova explosions, faint stellar objects in the Milky Way,
and galaxy evolution up to z approaching 10. The results of this survey will
also serve as an invaluable target feeder for the upcoming era of ELT and SKA.
