Forum:RftDD and synchros

If I activate Return from the different dimension and special summon back a tuner monster (plague spreader zombie) and a searcher like sangan or goblin zombie, will these cards be sent to the graveyard when i synchro summon a monster or will they return to remove from play?

- since they are no longer on the field, will RftDD resolve properly and move them to remove from play? - if they go to graveyard, will i get to use sangan's effect or even plague's effect?