Three TLMs Within an Hour at St. Mary, Mother of God in Washington, DC
The Franciscans, from their choice of red vestments, are likely offering the Mass for the feast of Sts.Vincent and Anastasius, martyrs. Fr. D'Alliessi offered the Mass for Peace, and commemorated the martyr saints as well.
The older priest at the high altar is reciting the Confiteor, while the priest on the right, who started slightly later, is reciting the Prayers at the Foot of the Altar with the server.
Now, the priest on the main altar is probably reciting the Gloria, while the priest at the side altar is praying the the Collect.
The priest at the main altar has moved on to the Offertory, while the priest on the side altar reads the Gospel.
The elevation of the Precious Blood at the main altar, while the priest at the side altar is earlier in the Canon.
The elevation of the Precious Blood at the side altar.
A shot centered on the Mass at the side altar.
The ablutions are taking place at the main altar, while the priest at the side altar is probably about to or is receiving the Blessed Sacrament. The priest at the side altar then distributed the Sacrament to those in attendance.
Fr. D'Alliessi has started has Mass at the main altar, while the Franciscan priest makes his ablutions at the side altar.