On Good Friday, Christians remember the crucifixion, death and burial of Jesus.
On Good Friday, Christians pray in memory of the passion of Jesus. In the prayer service of this day, the faithful listen to readings that lay out the true meaning of Jesus' suffering. The first reading is the fourth song of the Servant of the Lord in the Book of Isaiah (52:13-53:12). The long reading on this day is the passion of Jesus according to the Gospel of Saint John (18:1-19:42).
After the readings, the assembly prays for the entire world. The great intercession begins with prayers for the Church, for the Pope, for all believers and for those preparing for baptism. After this, the assembly prays for Christian unity, so dear to Jesus. The prayer for the Jewish people is heard throughout the world on Good Friday and also prayers for those who do not believe in Christ and those who do not believe in God. Special prayers are recited for political leaders and for those in need.
On this day there is no celebration of the Eucharist but rather Holy Communion is distributed to the faithful from that which was consecrated the night before, on Holy Thursday.
There is a tradition to hold a burial service for Jesus in the evening on Good Friday. See video of burial service in Holy Sepulcher here