We recommend the "Pillars: A Journey Through the Catechism" group study program. Presented by Dr. Sean Innerst of the Augustine Institute, it not only goes through the Catechism but shows how one can truly live the truths of the Catholic faith.
Fr. Brian Mullady summarizes the whole Catechism of the Catholic Church in 15 talks given at Holy Rosary Parish in Portland, OR. (http://store.casamaria.org/the-catechism-of-the-catholic-church-cds-fr-brian-mullady-op/)