Get set to help ninja master Lloyd train up his student Arin inside a pair of awesome mech suits. When the ninja come under attack from the evil Rapton and his 2 guards, for the first time ever you ... can combine Arin and Lloyds’s mechs to create 1 larger fighting mech. But look out for the villainous trio and their weapons! You need to win this battle and stop them conquering the new NINJAGO® world!