Group III introduces themselves and their presentation titled "Corn Shortage" which explores if corn will face a shortage problem similar to rice. The group consists of 5 members - Jerson Cervantes, Kenneth Almazan, Mary Jane Malicdem, Leslie Rico, and Maridel Baniqed - led by Janamae M. Velasco. They encourage the audience to watch and listen to their video presentation directed by Marian Rivera about a potential corn shortage.