Let's assume we have 100 blocks. One miner x has the intention to manipulate block 90. So he has to recalculate the hash for block 90. Following he also has to recalculate the hashes for block 91-100. Correct me, if I'm talking non-sense here.
So how do all the other miners figure out that miner x is cheating? And what happens to miner x, if he gets caught?