Nevada is in the 9th Federal Circuit (the only circuit that recognizes the "lien stripping" mechanism that you describe). This means that the bankruptcy court can void a junior lien in Chapter 13, as long as the first lien is worth more than the fair market value of the underlying property. See In re Zimmer, 313 F.3d 1220 (9th Cir. 2002).
However, the lien is only avoided on discharge, so if the case is converted to Chapter 7, or discharged under the Chapter 13, hardship section, then the junior lien remains valid.
Not that it would matter, because if you end up in Chapter 7, you're probably losing everything anyway.
Hope this helps.
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