Season 4
Episodes
1 For Your Ice Only Dec 7, 2012 
2 Happy New Year! Dec 7, 2012 
3 Fly on the Wall Jan 11, 2013 
4 Bully Bust Jan 18, 2013 
5 My Sweet Ride Feb 1, 2013 
6 Der Kinderlumper Feb 15, 2013 
7 Sidetracked Mar 1, 2013 
8 Primal Perry Mar 2, 2013 
9 Mind Share Apr 5, 2013 
10 Backyard Hodge Podge Apr 19, 2013 
11 Bee Day Apr 26, 2013 
12 Bee Story Apr 26, 2013 
13 Great Balls of Water Jun 7, 2013 
14 Where's Pinky? Jun 14, 2013 
15 Phineas and Ferb's Musical Cliptastic Countdown Hosted by Kelly Osbourne Jun 28, 2013 
16 Knot My Problem Jul 5, 2013 
17 Just Desserts Jul 5, 2013 
18 La Candace-Cabra Jul 12, 2013 
19 Happy Birthday, Isabella Jul 12, 2013 
20 Love at First Byte Aug 2, 2013 
21 One Good Turn Aug 9, 2013 
22 Phineas and Ferb: Mission Marvel Aug 16, 2013 
23 Thanks But No Thanks Sep 13, 2013 
24 Troy Story Sep 20, 2013 
25 Druselsteinoween Oct 4, 2013 
26 Terrifying Tri-State Trilogy of Terror Oct 5, 2013 
27 Face Your Fear Oct 11, 2013 
28 Cheers for Fears Nov 1, 2013 
29 Steampunx Nov 15, 2013 
30 Just Our Luck Jan 10, 2014 
31 Return Policy Jan 24, 2014 
32 Live and Let Drive Mar 1, 2014 
33 Phineas and Ferb Save Summer Jun 9, 2014 
34 Father's Day Jun 10, 2014 
35 Imperfect Storm Jun 11, 2014 
36 The Return of the Rogue Rabbit Jun 16, 2014 
37 It's No Picnic Jun 23, 2014 
38 The Klimpaloon Ultimatum Jul 7, 2014 
39 Operation Crumb Cake Jul 14, 2014 
40 Mandace Jul 14, 2014 
41 Phineas and Ferb: Star Wars Jul 26, 2014 
42 Lost in Danville Sep 29, 2014 
43 The Inator Method Sep 29, 2014 
44 Night of the Living Pharmacists Oct 4, 2014 
45 Tales from the Resistance: Back to the 2nd Dimension Nov 25, 2014 
46 Doof 101 Nov 27, 2014 
47 Act Your Age Feb 9, 2015 
48 Last Day of Summer Jun 12, 2015