When your brain makes you sad and reminds you Martin absolutely went off to fight Tsarmina alone is because last time he fought a tyrant he had friends helping and Rose was killed by Badrang trying to escape him.
The only thing worth watching in Redwall is the villains
Yes, they are generically characterized as being evil for the sake of being evil, yes, the broad message of which species is good or evil is complete bullshit, but they are at least entertaining in their own right as opposed to most of the heroes who are bland as hell.
Martin: Admit it, you think woodlanders were just put on this Earth to make your life easier!
Badrang: Weren't they?
Martin: I've never made anyone's life easier and you know it!
If Martin had a nickel for every time he found himself under the threat of death by a tyrant, escaped with the help of a mouse he would instantly come to care for above all else, be sent forth to a near-legendary place to rally help, only to gather help not from those he sought but from the friends he made along the way, then battle himself to the brink of death to end the tyrant