According to UNHCR, a record number of 856.723 people arrived in Greece by sea in all of 2015. Such an unprecedented number of migrants - a 18-fold rise from 2014 - had a direct knock-on effect on the Western Balkan Route, as the people who entered the EU in Greece made their way via Macedonia, Serbia into Hungary and Croatia and then towards Austria, Germany and northern Europe.
This is the story of a 2.000 km trip, on the road with migrants, from a bus station in Thessaloniki, Greece to a reception centre in Passau, Germany.