I've always thought that Kim was part of Dino Thunder But Never Seen.. with that in mind.. Ive decide to "re-write" the pilot of Dino thunder.. a little.. heres my version of what happened..
Tommy Finds out that Mesogog has discovered New rangers powers and plans to take over the world (yeah i know typical story). anyways, after being gone for days with no word from Tommy, Kim decides to go after him.. and things get messy..
After Losing there Powers and contact with Zordon, The Rangers, Try to Live There Lifes Again, Till, Lord Zed sends army of tangas, after the rangers, and transports them to deserted plant. where under attack the discover, they discover the power of the ninja... and well the rest is history.