"Baby Blue" -- When The Machine spits out the number of a 6-month-old baby, Reese and Finch (Michael Emerson) turn into overly protective parents - with an arsenal at their disposal. Meanwhile, when Elias resurfaces, Detective Carter begins to question her new allegiance with Reese and Finch, on PERSON OF INTEREST, Thursday, March 8 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: John P. Filo/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved.

"Baby Blue" -- When The Machine spits out the number of a 6-month-old baby, Reese and Finch (Michael Emerson) turn into overly protective parents - with an arsenal at their disposal. Meanwhile, when Elias resurfaces, Detective Carter begins to question her new allegiance with Reese and Finch, on PERSON OF INTEREST, Thursday, March 8 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: John P. Filo/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved.

"Baby Blue" -- When The Machine spits out the number of a 6-month-old baby, Reese (Jim Caviezel) and Finch turn into overly protective parents - with an arsenal at their disposal. Meanwhile, when Elias resurfaces, Detective Carter begins to question her new allegiance with Reese and Finch, on PERSON OF INTEREST, Thursday, March 8 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: Giovanni Rufino/Warner Bros. ©2012 Warner Bros. Television. All Rights Reserved.

"Baby Blue" -- When The Machine spits out the number of a 6-month-old baby, Reese (Jim Caviezel, right) and Finch turn into overly protective parents - with an arsenal at their disposal. Meanwhile, when Elias resurfaces, Detective Carter begins to question her new allegiance with Reese and Finch, on PERSON OF INTEREST, Thursday, March 8 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Also pictured: David Valcin (left). Photo: Giovanni Rufino/Warner Bros. ©2012 Warner Bros. Television. All Rights Reserved.

"Baby Blue" -- When The Machine spits out the number of a 6-month-old baby, Reese (Jim Caviezel, left) and Finch (Michael Emerson, right) turn into overly protective parents - with an arsenal at their disposal. Meanwhile, when Elias resurfaces, Detective Carter begins to question her new allegiance with Reese and Finch, on PERSON OF INTEREST, Thursday, March 8 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: John P. Filo/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved.

"Baby Blue" -- When The Machine spits out the number of a 6-month-old baby, Reese and Finch turn into overly protective parents - with an arsenal at their disposal. Meanwhile, when Elias resurfaces, Detective Carter (Taraji P. Henson) begins to question her new allegiance with Reese and Finch, on PERSON OF INTEREST, Thursday, March 8 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: John P. Filo/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved.

"Baby Blue" -- When The Machine spits out the number of a 6-month-old baby, Reese (Jim Caviezel) and Finch turn into overly protective parents - with an arsenal at their disposal. Meanwhile, when Elias resurfaces, Detective Carter begins to question her new allegiance with Reese and Finch, on PERSON OF INTEREST, Thursday, March 8 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: John P. Filo/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved.

"Baby Blue" -- When The Machine spits out the number of a 6-month-old baby, Reese (Jim Caviezel, center) and Finch (Michael Emerson, right) turn into overly protective parents - with an arsenal at their disposal. Meanwhile, when Elias resurfaces, Detective Carter (Taraji P. Henson, left) begins to question her new allegiance with Reese and Finch, on PERSON OF INTEREST, Thursday, March 8 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: John P. Filo/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved.

"Baby Blue" -- When The Machine spits out the number of a 6-month-old baby, Reese (Jim Caviezel) and Finch turn into overly protective parents - with an arsenal at their disposal. Meanwhile, when Elias resurfaces, Detective Carter begins to question her new allegiance with Reese and Finch, on PERSON OF INTEREST, Thursday, March 8 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: John P. Filo/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved.

"Baby Blue" -- When The Machine spits out the number of a 6-month-old baby, Reese (Jim Caviezel) and Finch turn into overly protective parents - with an arsenal at their disposal. Meanwhile, when Elias resurfaces, Detective Carter begins to question her new allegiance with Reese and Finch, on PERSON OF INTEREST, Thursday, March 8 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: John P. Filo/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved.