The Smiths take a trip on an old steam locomotive to visit Francine's aunt only to discover it's being hijacked.
Quest roles:
Chris Parnell(Doctor (voice)), Kevin Michael Richardson(Billy (voice)), Jeff Fischer(Jeff Fischer (voice)), Joe Lo Truglio(Amish Man (voice)), Alan Tudyk(Dr. Kalgary (voice)), Andrew Daly(Old Man (voice)), Khary Payton(Lindsey (voice)), Parker Deay(Parker (voice)), William Jackson Harper(General Store Cashier (voice)), Ron Perlman(Bandit (voice)), Paget Brewster((voice)), Tom Kenny(Donald Magillicutty (voice)), Jon Daly(Chicago Dave (voice)), Tiya Sircar(Train Actor (voice)), Mindy Sterling(Anastasia Kirilenko (voice)), Scott Whyte(Train Actor (voice))