sentences:  The height of the team's success was in 2014 when they went undefeated in the playoffs and won an NBA D-League championship.In September 2015, the Pacers Sports and Entertainment group bought the Mad Ants and converted them into the Indiana Pacers' minor league team.This transaction was one of the hallmark steps in the development of the D-League into a one-to-one affiliate league with the NBA.