Our traditional Maundy Thursday Liturgy begins the "Triduum" (Latin for Three Days) liturgical arc. It recalls Jesus' Last Supper with the Twelve, which was the Seder meal that marked the start of the Passover that year.
Jesus demonstrated his humility in washing their feet before they sat down (actually reclined) for the Seder. We will do likewise.
This is the final celebration of the Holy Eucharist during Holy Week. Any bread and wine that remains will process to the Altar of Repose at the south side of the Church, which has been decorated to recall the Garden of Gethsemane.
The Altar and surrounding area will then be stripped of all decorations, the altar washed, and the Cup will remain (on its side) to mark the utter emptiness left after Jesus' arrest that evening.
The People depart in silence without a dismissal. We will resume the Triduum liturgy at our Good Friday observance.