David Trueheart, Tommy's long lost brother, immediately hits it off with his similar-looking sibling, though seems to be overly sensitive when they compare martial arts skills. The Machine Empire becomes aware of the power within Tommy & David's merged arrowhead-halves, and kidnaps David as ransom to gain the artifact. If that wasn't bad enough, the Mace Face monster attacks, proving to be too powerful for the Rangers' Zords. Meanwhile, Goldar & Rito get loose, causing Bulk & Skull to go out searching for them.