▁what ▁appears ▁to ▁be ▁an ▁under ground ▁ge odes ic ▁d ome ▁with ▁computer ▁equipment , ▁including ▁an ▁Apple ▁II ▁Plus ▁computer ▁with ▁its ▁prompt ▁g low ing ▁and ▁its ▁shift ▁key ▁rel abeled ▁execute . ▁As ▁Jack ▁is ▁about ▁to ▁use ▁it , ▁Lock e ▁appears ▁and ▁tells ▁Jack ▁not ▁to ▁touch ▁it . ▁After ▁Jack ▁ra ises ▁the ▁gun ▁and ▁asks ▁where ▁Kate ▁is , ▁Lock e ▁is ▁revealed ▁to ▁be ▁at ▁gun point . ▁The ▁gun man ▁threat ens ▁that ▁he ▁will ▁shoot ▁Lock e ▁if ▁Jack ▁does ▁not ▁surrender . ▁Jack ▁ref uses , ▁instead ▁ta un ting ▁Lock e ▁about ▁his ▁dest iny . ▁Finally , ▁the ▁gun man ▁steps ▁out ▁and ▁Jack ▁seems ▁to ▁recognize ▁him . ▁The ▁gun man ▁is ▁Des mond . ▁ ▁Production ▁ ▁While ▁" Man ▁of ▁Science , ▁Man ▁of ▁Fa ith " ▁all udes ▁to ▁a ▁quote ▁in ▁the ▁previous ▁episode ▁where ▁Lock e ▁describes ▁himself ▁as ▁a ▁man ▁of ▁faith ▁and ▁Jack ▁as ▁a ▁man ▁of ▁science , ▁writer ▁Dam on ▁Lind el of ▁stated ▁that ▁the ▁episode ▁has ▁the ▁title ▁to ▁imply ▁that ▁Jack ▁is ▁both , ▁with ▁the ▁flash back ▁making ▁the ▁empir ic ist ▁" man ▁of ▁science " ▁facing ▁a ▁mi racle ▁while ▁tre ating ▁a ▁patient . ▁The ▁episode ▁was ▁written ▁to ▁focus ▁on ▁the ▁opening ▁of ▁the ▁h atch , ▁so ▁the ▁other ▁cl iff h anger ▁left ▁in ▁" Ex od us ", ▁the ▁destruction ▁of ▁Michael ' s ▁boat ▁and ▁the ▁kid