Guest Stars: Fritz Weaver (Dr. Solano), Bettye Ackerman (Asclepia)
Special Guest Stars: Jessica Walter (Gloria Marquez), Beatrice Straight (Queen Hippolyta)
Co-Starring: David Knapp (Major Gaines), Carlos Romero (Colonel Acevo), Dorrie Thomson (Evadne)
Featuring: Argentina Brunetti (Manageress), Edward Cross (Pilot), Johana DeWinter (Dr. Ross), George Ives (Samuels), Frank Killmond (Logan), Russ Marin (Kleist), William Tregoe (Kalten), Raye Sheffield (Dr.Andrea)
Written By: Stephen Kandel
Directed By: Alan Crosland
Ep: 15
Anschluss '77
Guest Stars: Mel Ferrer (Fritz Gerlich), Leon Charles (Heinrich Von Klemper)
Co-Starring: Barry Dennen (Hitler), Kurt Kreuger (Koenig), Julio Medina (Gaitan)
Featuring: Tom Ormeny (Rogel), Peter Nyberg (Strasser)
Written By: Dallas L. Barnes
Directed By: Alan Crosland
Ep: 16
The Bermuda Triangle Crisis
Guest Stars: Charles Cioffi (Raymond Manta), Beatrice Straight (Queen Hippolyta)
Co-Starring: Herman Poppe (The Sergeant)
Featuring: Barry Hamilton (Radarman), Larry Golden (Lieutenant Mansfield), George Ranito Jordan (Driver / Guard), James Staley (Guard #1), Joseph Chapman (Radioman)
Written By: Calvin Clements, Jr.
Directed By: Seymour Robbie
Ep: 17
The Man Who Could Move the World
Guest Star: Yuki Shimoda (Ishida)
Special Guest Star: Lew Ayres (Dr. Theodore Wilson)
Co-Starring: James Hong (Oshima), Alan McRae (Security Officer), J. Kenneth Campbell (Taft)
Featuring: Steven Ken Suehiro (Ishida as a Boy), Peter Kwong (Masaaki as a Boy), Arthur Song (Masaaki)
Written By: Judy Burns
Directed By: Bob Kelljan
Ep: 18
Knockout
Guest Stars: Jayne Kennedy (Carolyn), Burr DeBenning (Tom Baker), Arch Johnson (John Kelly), Frank Marth (Tall Man), Ted Shackelford (Pete)
Co-Starring: Abraham Alvarez (Radio Car Officer Fernandez), Alex Colon (Angel Velasquez)
Featuring: Frank Parker (Lane Curran), K.C. Martel (Ted)
Written By: Mark Rodgers
Directed By: Seymour Robbie
Ep: 19
The Pied Piper
Guest Stars: Martin Mull (Hamlin Rule), Denny Miller (Carl Schwartz)
Special Guest Star: Eve Plumb (Elena)
Co-Starring: Bob Hastings (Gatekeeper), George Cooper (Manager Amos Hoffman), Melvin F. Allen (Lieutenant McMasters)
Teleplay By: David Ketchum & Tony DiMarco & Brian McKay
Story By: David Ketchum & Tony DiMarco
Directed By: Alan Crosland
Ep: 20
The Queen and the Thief
Guest Stars: Juliet Mills (Queen Kathryn), David Hedison (Evan Robley), John Colicos (Ambassador Orrick)
Written By: Bruce Shelly
Directed By: Jack Arnold
Ep: 21
I Do, I Do
Guest Stars: Celeste Holm (Dolly Tucker), Simon Scott (Sam Tucker), John Getz (Christian Harrison)
Special Guest Star: Henry Darrow (David Allen)
Co-Starring: Kent Smith (Chief Justice Brown), Brian Avery (Denny Lake)
Featuring: Thomas W. Babson (Smitty), Steve Eastin (Johnny), Scott Mulhern (Desk Clerk)
Written By: Richard Carr
Directed By: Herb Wallerstein
Note: This is the last episode that uses the cartoon panel style for opening and closing credit sequences
Ep: 22
The Man Who Made Volcanos
Guest Stars: Roger Davis (Jack Corbin), Irene Tsu (Mei Ling), Richard Narita (Lin Wan)
Special Guest Star: Roddy McDowall (Professor Chapman)
Guest Stars: Milt Kogan (Kalanin), Ray Young (Tobirov)
Co-Starring: Philip Ahn (Colonel Minh)
Featuring: James R. Parkes (Dave Pruett), Grant Owens (Technician)
Co-Starring: Earl Boen (Chaka), Barry Cahill (General Miller), Del Hinkley (George Hess), Barbara O. Jones (Sell), Allan Migicovsky (Dr. Rand), Anne Ramsey (Connie), Linda Ryan (Ruth Blaine), Sol Weiner (Captain Parelli)
Featuring: Gary Bisig (Rossman), Betty Cole (Cleaning Lady), Lana Marie Henricks (Karen), Lori Ann Henricks (Kim)
Co-Starring: Earl Boen (Chaka), Barbara O. Jones (Sell), Allan Migicovsky (Dr. Rand), Curt Lowens (Nordling), Rege Cordic (Professor Eidleman), Lana Marie Henricks (Karen), Lori Ann Henricks (Kim)
Featuring: Walt Davis (Security Guard), Phyllis Flax (Woman Delegate), Eric Mason (Senator Wainright), Dee Dee Young (Zambezia Delegate), Kristin Larkin (Debbie)
Written By: Stephen Kandel
Directed By: Alan Crosland
Ep: 25
Deadly Toys
Guest Stars: Frank Gorshin (Hoffman), James A. Watson, Jr. (Dr. Prescott)
Special Guest Star: John Rubinstein (Major Dexter)
Co-Starring: Donald Bishop (Dr. Tobias), Ross Elliott (Dr. Lazaar)
Featuring: Michael W. Kinney (Guard #2), Mike Kulik (Intruder), Randy Phillips (Doctor), Harv Selsby (Guard)
Teleplay By: Anne Collins
Story By: Carey Wilber
Directed By: Dick Moder
Ep: 26
Light-Fingered Lady
Guest Stars: Chris Stone (Tony Ryan), Joseph R. Sicari (Leech), Bubba Smith (Paul Rojak), Gary Crosby (Grease), Titos Vandis (Michael Sutton)
Featuring: Ric DiAngelo (Ross), Thomas Hilliard (Guard)
Written By: Bruce Shelley
Directed By: Alan Crosland
Ep: 27
Screaming Javelins
Guest Stars: Henry Gibson (Marion Mariposa), Robert Sampson (Bo Taggart), Melanie Chartoff (Nadia Samara), Rick Springfield (Tom), E.J. Peaker (Lois)
Co-Starring: Vaughn Armstrong (Eric), Roger Callard (Bill), The Kearney Twins (The Twins)
Featuring: Sam Freed (Runner), Dennis M. Madalone (Pole Vaulter)
Written By: Brian McKay
Directed By: Michael Caffey
Ep: 28
IRAC is Missing
Guest Stars: Ross Martin (Bernard Havitol), Lee Paul (Dirk), W.T. Zacha (Dick)
Co-Starring: Tina Lenert (Cori)
Featuring: Lloyd McLinn (Guard), Mathias Reitz (Technician), Jim Veres (Sergeant Dobson), Cletus Young (Official), Colin Hamilton (Director)
Written By: Anne Collins
Directed By: Alex Singer
Ep: 29
Diana's Disappearing Act
Guest Stars: Dick Gautier (Cagliostro), Ed Begley, Jr. (Harold), J.A. Preston (Jazreel), Allen Williams (Hutchins), Aharon Ipale (The Emir)
Special Guest Star: Brenda Benét (Morgana)
Co-Starring: Saundra Sharp (Eve), George Skaff (Shopkeaper), Maurice Sherbanee (Ambassador)
Featuring: James Mark Wilson (Magician #1), Don W. Brockhaus (Magician #2), Peter DePaula (Mime #1), Kathlyn (Mime #2)
Written By: S.S. Schweitzer
Directed By: Michael Caffey
Ep: 30
Death in Disguise
Guest Stars: Joel Fabiani (Nightingale), Jennifer Darling (Violet Louise Tree), Lee Bergere (Marius), Charles Pierce (Starker / Finley)
Special Guest Star: George Chakiris (Carlo Indrezzano)
Guest Stars: Art Batanides (Krug), Christopher Cary (Beamer)
Co-Starring: Saundra Sharp (Eve), Carol Worthington (Major Finley)
Featuring: Katharine Charles (Corporal), Jack Kissell (Plotkin), Maurice Marsac (Maitre D')
Written By: Tom Sawyer
Directed By: Alan Crosland
Ep: 31
Seance of Terror
Guest Stars: Rick Jason (Koslo), Kres Mersky (Theodora), Todd Lookinland (Matthew), John Fujioka (Yamura), Hanna Hertelendy (Ms. Kell), Adam Ageli (Bakru)
Co-Starring: Saundra Sharp (Eve), John Birk (Eric), Christine Avila (Mrs. Bakru), Jean-Ivan Dorin (Dekker), Tad Horino (Yamura, Sr.)
Written By: Bruce Shelly
Directed By: Dick Moder
Ep: 32
Flight to Oblivion
Guest Stars: Michael Shannon (Lieutenant Stonehouse), Corinne Michaels (Captain Anne Colby), Alan Fudge (Major Cornell), Mitch Vogel (Mitch)
Special Guest Star: John Van Dreelen (Dante)
Featuring: Walt Davis (Lieutenant), Nightwind (The Hull City Howlers)
Written By: Patrick Mathews
Directed By: Alan Crosland
Ep: 33
The Girl From Ilandia
Guest Stars: Harry Guardino (Simon Penrose), Julie Ann Haddock (Tina), Alan Arbus (Bleaker)
Co-Starring: Buck Young (Doctor), Pamela Toll (Nurse)
Featuring: Fred Lerner (Davis), Chuck Hicks (Thomson), Mike Kopcha (First Mate), Todd Hoffman (Bully)
Written By: Anne Collins
Directed By: Dick Moder
Ep: 34
The Man Who Wouldn't Tell
Guest Stars: Jane Actman (Meg), Philip M. Thomas (Furst), Michael Cole (Ted), Millie Slavin (BW)
Special Guest Star: Gary Burghoff (Alan)
Co-Starring: Saundra Sharp (Eve), Tony Brubacker (Tom)
Written By: Anne Collins
Directed By: Alan Crosland
Ep: 35
The Murderous Missile
Guest Stars: James Luisi (George), Mark Withers (Luther). Warren Stevens (Sheriff Beal), Steve Inwood (Mac), Lucille Benson (Flo)
Special Guest Star: Hal England (Hal Shaver)
Co-Starring: Sam Edwards (Ernie), Alan McRae (Lieutenant), Maurice Sneed (Corporal), Neil Elliot (William Ryan)