What the maximum number episode series listed?
No. # Title Directed by Written by Canadian air date U.S. air date Production code Canadian viewers (million)
real real text text text text text real text
1-18424435-4
32 1 "Unconditional Love" David Frazee Mark Ellis & Stephanie Morgenstern July16,2010 July 16, 2010 301 1.334
33 2 "Severed Ties" Holly Dale Treena Hancock & Melissa R. Byer August6,2010 August 6, 2010 302 1.452
34 3 "Follow the Leader" David Frazee James Hurst August13,2010 August 13, 2010 303 1.267
35 4 "Whatever It Takes" Holly Dale Grame Manson August20,2010 August 20, 2010 304 1.558
36 5 "The Other Lane" Erik Canuel Bobby Theodore September3,2010 September 3, 2010 306 1.508
37 6 "Jumping at Shadows" Kelly Makin Mark Ellis & Stephanie Morgenstern September10,2010 September 10, 2010 308 1.607
38 7 "Acceptable Risk" David Frazee Pam Davis September17,2010 September 17, 2010 309 1.800
39 8 "Collateral Damage" Kelly Makin Aaron Brindle January4,2011 May6,2011 305 1.595
40 9 "Thicker Than Blood" David Frazee Andrea Stevens January11,2011 May13,2011 307 1.524
41 10 "Terror" Érik Canuel Melissa R. Byer & Treena Hancock January18,2011 June3,2011 311 1.396
42 11 "No Promises" Charles Binamé Russ Cochrane January25,2011 May20,2011 310 1.584
43 12 "I'd Do Anything" Helen Shaver Pamela Davis & Bobby Theodore February1,2011 June10,2011 312 1.342
table_18424435_4
SELECT MAX No. FROM table