Hijo de Máscara Año 2000, who were actually the sons of Máscara Año 2000 (Cien Caras' brother). On May 31, 2007, Hijo de Cien Caras and Máscara Año 2000, Jr. defeated the team of El Pantera and El Felino to win the IWRG Intercontinental Tag Team Championship. El Hijo de Cien Caras' run as double champion lasted under two weeks before losing the belts to the team of El Sagrado and Rayman on June 10, 2007. Following the loss of the Occidente Tag Team Championship Los Junior Dinamitas featured the team of Hijo de Cien Caras and Máscara Año 2000, Jr. more than the other two members as the team quickly established themselves as the most dominant IWRG Tag Team Champions as they held the title for 801 days and made 11 successful title defenses, although they did have a long period of inactivity as a team in early to mid 2009 due to Hijo de Cien Caras not working regularly for IWRG. During the time period the two had successful defenses against such teams as Electroshock and El Hijo de Anibal, Pierroth and El Hijo de Pierroth, El Hijo de Solitario and El Hijo de Anibal, Rayo de Jalisco, Jr. and El Hijo de Anibal, Dr. Wagner, Jr. and Silver King, Silver King and El Dandy, El Fantasma and Fantasma, Jr., Scorpio, Jr. and Zumbido, Arlequin and Hijo de Pierroth and The Headhunters. Hijo de Cien Caras participated in the 2008 IWRG Rey del Ring tournament on July 24, 2008 and was the 29th, and last wrestler eliminated, only outlasted by the winner Scorpio, Jr. On August 9, 2009, Los Junior Dinamitas marathon reign ended when the team of Ricky Cruzz and Scorpio, Jr. AAA vs. IWRG feud During an IWRG show on April 29, 2010, AAA wrestler Silver King showed up for the show, allegedly to promote the movie "Nacho Libre II" but ended up starting an interpromotional feud between AAA and IWRG. Los Junior Dinamitas quickly came to the defense of IWRG, wrestling against Silver King and other AAA representatives such as Alex Koslov, Chessman and Cibernético. During AAA's Triplemanía XVIII Los Junior Dinamitas made a surprise appearance moments after Silver King and Último Gladiador won the AAA World Tag Team Championship to challenge the new champions. This marked the first time IWRG wrestlers appeared on AAA television. On June 20, 2010, Máscara Año 2000, Jr. and