Episode 46: Awatenbō Ninja - 01/08
Samuraiman is the Key, which unlocks a summon used alongside Shinken GokaiOh.
Worzard Fire, Samuraiman and Zubann are used by Joe, Luka and Ahim, who grow to giant size.
Episode 47: N/A - 01/15
To avenge the dead Sentai members, Hayate Sho swears to kill Basco.
Sally is Basco's sister, who would be saved by the Grand Powers
Each Gokaiger uses one of the 5 keys relating to one of the teams Basco stole.
Fiveman's Great Power has something to do with summoning "Gingaman" when Basco uses it.
Sally and Basco die though the use of all 5 stolen Grand Powers.
Episode 48: N/A - 01/22
Marvelous uses the AkaRed key and summons the "Sac Red."
Joe and Gai pilot GokaiOh and GoZyuJin alongside it and fights the ultimate Zangyack weapon, the Gill War. It is purple and has a resemblance to Dairanger's Daijinryuu.