Magnemite has gotten himself into a pickle they were trapped in thunderwave cavern due to the magnetic fields but however luckily a pokemon carried him to safety.  And so he asked Milo and Riley if he could rescue his friends deep within thunderwave caves.  After Milo and Riley rescue the Magnemites friends they try to offer an award but realize they aren't part of a rescue team yet so they just move on.  However in the Mt Steel rescue mission they then help Milo and Riley rescue a diglett from a dangerous steel type bird named Skarrmary.  After that one of the Magnemite ends up joining Milo and Rileys Rescue team once they have been officially been made a team.

Magnemites personality He is pretty smart when it comes to the science and technology that is around him and his friends home that they hangout around he is also a quick learner when it comes to making hasty decisions or trying to learn some difficult things.