Bus from Zablijak to Dubrovnik -

Hello we are travelling to Dubrovnik from Zabljak on the 3rd August .

We want to get to Dubrovnik in the afternoon. (not late)

I read on another thread that there is a bus from Zablijak Direct to Niksic

but from here I am not sure how to get to Dubrovnik (bus first to Herceg Novi) ?

is there a link with timetable connections and prices.

We are 2 adults and 2 Teenagers but - maybe that will mean adult as they are 16 & 17.