  The authors propose a new variation of random walks called ladder chains
$L(r,s,p)$. We extend concepts such as ruin probability, hitting time,
transience and recurrence of random walks to ladder chain. Take $L(2,2,p)$ for
instance, we find the linear difference equations that the ruin probability and
the hitting time satisfy. We also prove the recurrence of a critical case
$(p=\sqrt{2}-1)$. All approaches of these results can be generalized to solve
similar problems for other ladder chains.
