Brian invites a guest whose name is Alex. He was Brian's apprentice back in the day, Alex has also been dating Brian’s sister for about 8 years. Alex has his NICET level 2, and he has his backflow certification. The hosts mention a recent giveaway of Brunt boots and tease another giveaway closer to Christmas. They emphasize the importance of community growth and knowledge sharing within the fire protection industry. Alex shares his experience with Fire Tech training software and the NTC black book for inspections, recommending them to viewers. He also discusses his recent level 2 certification and upcoming level 3 exam.