It's Passover in Jerusalem, and the city is bursting with pilgrims. It's a tense time for those charged with keeping order - like Pilate the Roman Prefect and Caiaphas the High Priest. The arrival of a preacher from Galilee called Jesus causes great excitement when he enters through the East Gate on a donkey's colt, fulfilling prophecies of the coming of the Messiah. For Jesus's band of disciples, hardened by several years on the road, this is the moment they've been waiting for, but none of them suspects how momentous this week will be.