| 0 | - | cover | 1 | pencils: Ed Cronin; inks: Ed Cronin | |
| 1 | - | comic story | 4 | script: Ham Fisher; pencils: Mo Leff; inks: Mo Leff | Joe Palooka; Little Tommy |
| 2 | - | cartoon | 0.5 | script: Ed Reed; pencils: Ed Reed; inks: Ed Reed | |
| 3 | The Tuvanian Munitions Plot | comic story | 4 | script: Will Eisner; pencils: Will Eisner; inks: Will Eisner | Black X; Bronislaus (first appearance; villain); Karl Lescu (first appearance; villain); Pigiron (first appearance; villain; death) |
| 4 | - | comic story | 4 | script: Monte Barrett; pencils: Russell Ross; inks: Russell Ross | |
| 5 | The East Wing | comic story | 2 | script: Will Eisner; pencils: Will Eisner; inks: Will Eisner | Archie O'Toole; The ghosts of the East Wing (first appearance; villains); Max; Snowdrift |
| 6 | A Helping Hand | comic story | 2 | script: H. J. Tuthill; pencils: H. J. Tuthill; inks: H. J. Tuthill | |
| 7 | The Deserter | comic story | 4 | script: Art Pinajian; pencils: Art Pinajian; inks: Art Pinajian | Sgt. Jim Reynolds, RCMP; Harry Wells (first appearance; villain); Jim Wells (first appearance; villain); Pierre (first appearance; villain); their gang (first appearance; villains) |
| 8 | Episode 20 | comic story | 2 | script: Ed Wheelan; pencils: Ed Wheelan; inks: Ed Wheelan | |
| 9 | - | comic story | 1 | script: George Marcoux; pencils: George Marcoux; inks: George Marcoux | |
| 10 | - | comic story | 1 | script: Bill Sakren; pencils: Bill Sakren; inks: Bill Sakren | |
| 11 | Yu the Great | cartoon | 1 | script: John Hix; pencils: John Hix; inks: John Hix | |
| 12 | Robbery At the Acme Diamond Company | comic story | 5 | script: George Brenner; pencils: George Brenner; inks: George Brenner | The Clock [Brian O'Brien]; Boss Marco (villain, introduction, death); Slick (villain, introduction, death); Soapy (villain, introduction, death); another crook (villain, introduction, death) |
| 13 | The Olympic Marathon of 1908 in London | cartoon | 1 | script: Bob Zuppke; pencils: Walt Depew; inks: Walt Depew | |
| 14 | - | comic story | 3 | script: Rube Goldberg; pencils: Rube Goldberg; inks: Rube Goldberg | |
| 15 | The Scarab Curse | comic story | 4 | script: Bill Smith; pencils: Bill Smith; inks: Bill Smith | Captain Cook; The Briston Brothers (first appearance; villain); Earl of Gillingham (first appearance; death); Sydney Gillingham (first appearance; death); John Gillingham (first appearance) |
| 16 | - | cartoon | 1 | script: Ed Reed; pencils: Ed Reed; inks: Ed Reed | |
| 17 | - | comic story | 3 | script: J. P. McEvoy; pencils: John Striebel; inks: John Striebel | |
| 18 | Episode 20 | comic story | 2 | script: John Welch; pencils: John Welch; inks: John Welch | Roger Bligh; Hartley Hammond; Mrs. Bott; Jusith Benton; Slim; Tubby; Bullets Benton |
| 19 | The Mystery of Echo Island, Chapter 1: Man of Iron | text story | 2 | script: John A. Thorne | |
| 20 | Battle At Sea | comic story | 4 | script: Vern Henkel; pencils: Vern Henkel; inks: Vern Henkel | Sir Raymond (first appearance); Lady Alice (first appearance); Sir Neville |
| 21 | - | comic story | 4 | script: Bob Zuppke; pencils: Walt Depew; inks: Walt Depew | |
| 22 | - | comic story | 4 | script: Frank Frollo; pencils: Frank Frollo; inks: Frank Frollo | Richard Manners; Mr. Goetz (first appearance); Miro (first appearance; villain); Joe (first appearance; villain); Caesar (first appearance; villain) |
| 23 | Mark of A Coward | cartoon | 0.25 | script: John Hix; pencils: John Hix; inks: John Hix | |
| 24 | - | comic story | 4 | script: Lank Leonard; pencils: Lank Leonard; inks: Lank Leonard | |