  We consider reflected entropy in a thermofield double state perturbed by a
heavy operator insertion. For sufficiently early operator insertions the dual
geometry can be described by a localized shock wave geometry. We calculate the
entanglement wedge cross-section in this geometry for symmetric intervals and
find that it matches precisely with the CFT result for sufficiently late times.
Our result exhibits a plateau before going to zero, a behaviour similar to the
one observed recently in the context of global quantum quenches. We find that
at high temperatures this behaviour is properly captured by the line-tension
picture.
