Season 1 CBBC , 2013 Season 3 CBBC , 2015 Season 4 CBBC , 2016 Season 5 CBBC , 2016 Season 6 Officially Amazing Goes Bunkers CBBC , 2017 Season 7 Best of the Bunker CBBC , 2018 Season 8 Officially Amazing Goes Bunkers 2 CBBC , 2018